05-一次方程(组)及其应用
一、单选题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890820c5c3c7a71c16206efd6dab050f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2604366fc4a03567cd45ac76000e0825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5d0edc23ff2debf3cecc719e761846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8812acd468a2f1f0e69be57c6f09a1d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 二元一次方程组的特殊解法解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9eed64d225267a58cd001db67e2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78d0ab561d0c9bb9099772c596af8bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e8936c9fe1e81726455908657a29fc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/b9da785c-0036-4967-a33f-d7d71c11e543.png?resizew=123)
A.在![]() | B.在![]() | C.在 ![]() | D.在 ![]() |
【知识点】 行程问题(一元一次方程的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df69fb4e93aa1359da6ae6d540ccc572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2903b029bafc3e6683bcf5dd5cc1a8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/5ce07e9a-eab4-43a8-aaea-382ecf6c40f5.png?resizew=297)
A.512 | B.64 | C.128 | D.−512 |
【知识点】 有理数的乘方运算解读 数字问题(一元一次方程的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3e6aa5748e98e1c20269a4dc8a5346.png)
A.4 | B.1.5或2 | C.2 | D.4或2 |
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 几何问题(二元一次方程组的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f938efc41104e3700345a8bf01bc366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d3c880f30beda2ebf604976dc159c5.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deff214da10afdd8003e3ad7d859dcb1.png)
③无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c960fc862fd36db83082f5c50cd604b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239ff12eb6cba0100f0dadb847c90ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99799f9d0a1dbc22c0c9576b09b6f487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.①③ | B.②③ | C.②③④ | D.③④ |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f161c2a3717f1b6c62d0d7dae0b606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dc9cafbab1134e888be3d597750bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3788a125c33eee076151e215a9b02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5c49c9ece8b1ff795ff55d954982e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/001a899c9fe7bdd1c177c9ad21691c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56bd362a4772a00ac7c299a5b902c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abece2698a9c18b05334e27b2de10d75.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3480f0aa8085e5802906c5280c3f5109.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df89bd6f3dc65a99a2383a27845e3aa.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2b8aeb0b19cfad5cfbb3e5e82c0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01a5bff2b78a44aca2468356e4d301a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e7a8aad8ec96430cf155c583782da6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5942de2e84374d4c6045e2584c71ecb.png)
④方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee879ec35c76eda118be4961285d412c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439b1e676529f907ef768edb9c61bd9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbec2550c93714620eca62a67b52120.png)
A.1 | B.2 | C.3 | D.4 |
【知识点】 有理数的减法运算解读 解一元一次方程——拓展解读
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/7f9fd30e-82bd-4a75-b081-b64666ec2b1a.png?resizew=222)
A.![]() ![]() |
B.![]() ![]() ![]() ![]() |
C.3秒或7秒或![]() ![]() |
D.![]() ![]() ![]() ![]() |
【知识点】 数轴上的动点问题解读 行程问题(一元一次方程的应用)解读
二、填空题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/ce9a4805-bcb0-4556-afb5-45a04b99ed3a.png?resizew=594)
【知识点】 程序流程图与有理数计算解读 其他问题(一元一次方程的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ddf68448b62a8da683ac4da36e6279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/201b422d3c0085b1da31e6cf74f464f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474fc810f5877c250ab37b7ed6e954c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e8ebd7c4463e7311f7ab4d7cd7d241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9488e44bf61b453324220bbe679da54d.png)
(1)若关于x的一元一次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643eb4037eb93a15674b163258849f49.png)
(2)若关于x的一元一次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f862f9da56aef78c929e34e7f6dc08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40bdb799b5de692d3b19780552cce12b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5e2608df89e7fc91cb6a0b45615cc4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/28/70d2a95b-1362-48d7-814d-b6e049676b2b.png?resizew=256)
【知识点】 整式加减的应用解读 几何问题(一元一次方程的应用)解读
用电量(单位:千瓦⋅时,统计为整数) | 单价(单位:元) |
![]() | ![]() |
![]() ![]() | ![]() |
![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0b71b8d2c183154221f717ce09077b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9db58aa1e9c1383f0729461fa2fcde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0b71b8d2c183154221f717ce09077b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6178a442ea84b1753197fa867b9c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
【知识点】 电费和水费问题(一元一次方程的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11eb7dc66371f23feb2e9c882be33dd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e515c80daf34fff5923cd86142398bf3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f94e0560f03b9e9c56cfbfce337373.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62afb4a0d7a630dc76e5373c78131ea0.png)
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5113986d9507fc5015e71989831c128b.png)
【知识点】 其他问题(一元一次方程的应用) 加减消元法解读
三、解答题
当m,n都是实数,且满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de8f02f0d1122a12da3526543cdb512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39636f5587e2a7e69db44024ede86de6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e92a0146ac32e48bf852fa4acc75187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492b61f6c8873d44258f097f969b5352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d5b5af91fc7a56c7dda8b4d38b2fd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877207c674350f73cf1debfe1bb8a307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e92a0146ac32e48bf852fa4acc75187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd12bcc8370d5d7c548b3cfe3024d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb81b78210474b6b6928040ae1923e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f2a6b3b0e68182d842a411831fcdc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de8f02f0d1122a12da3526543cdb512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd12bcc8370d5d7c548b3cfe3024d8a.png)
(1)点A
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae0935c251f0a684e498c286f6138b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d02dba7080b2d1e0d7a4a16a48a0d47.png)
(2)点M
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c53f45bfa40afc45e6b4736290218d.png)
(3)若以关于x,y的方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f5cd8f075bccd5cc2d7b0a4b2c9645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1e4f15c8921349f6576391c3fc7e38.png)
【知识点】 已知二元一次方程组的解的情况求参数解读 坐标与图形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
(1)求乙队单独施工多少天完成全部工程?
(2)若甲队工作4天,乙队工作3天共需支付工程劳务费42000元,甲队工作5天,乙队工作6天共需支付工程劳务费75000元,求甲、乙两队工作一天的劳务费分别为多少元?
(3)在(2)的条件下,若两个工程队不同时施工,在总劳务费不超过28万元的情况下,则最快______天能完成总工程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02448598bbb9d28612fbb68a3d7d2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107b8c7c5b3321e555a353c95a1b2a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d230539d4b432e71e8e596960d1400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9378f4030a56301dfdf892c0b36182b.png)
(1)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0f0addd8d409694a56d40940e87ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ff7544489aaf0fa00b09335006642c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
(2)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8325bc7ccbc3430c7905721e2b1d0648.png)
(3)已知关于x的一元一次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a669002e0fd42fa6096fbfdd9b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db966ca37d546097a4c51f281303363f.png)
【知识点】 方程的解解读 其他问题(一元一次方程的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b0dc3ee14e46aa290d53004d57203c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4cb68c20fd72b89c9e1ed6d3aab710.png)
①请直接写出方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff16f02559e1312c183861c5526e560.png)
②若该方程组的解也满足方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45900deae0489e87fe448948e8091c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fe8d6ceb1175bdbf6936ff67fa2990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef159a0ff640ec13f0e331416cf504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fe8d6ceb1175bdbf6936ff67fa2990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2d0636d512fa767b3f8ab59ce0824c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae08dd8713ddc5b5e1c832b2219d0b0.png)
(1)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a583c33f73d57a5fde5f13b9908bb0.png)
(2)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fe8d6ceb1175bdbf6936ff67fa2990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fe8d6ceb1175bdbf6936ff67fa2990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763e36fc7d07b0542f9b5d8253b5bcf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2ca9205fe61b3aab7c40ca92304158.png)
(3)已知整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f04ce5c412c2e23523af4258fc8ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074ebfd96995278ddb9afe5db227f583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66898ddcd0e4a23fa10fdda62131d421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
情境 | 内容 | 图形 |
情境1 | 工厂仓库内现存有![]() ![]() |
|
情境2 | 库存纸板已用完,采购部重新采购了如图规格的纸板,甲纸板尺寸为![]() ![]() ![]() |
|
情境3 | 某次采购订单中,甲种纸板的采购数量为500张,乙种300张,因采购单被墨水污染,导致丙种纸板的具体数字已经模糊不清,只知道百位和十位数字分别为2和4 |
|
(1)情境1,问两种纸盒各做多少个,恰好将库存纸板用完?
(2)情境2,问能否通过做适当数量的竖式和横式无盖纸盒,使得纸板的使用率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9c407a9e79f3612690b9cff43a08e0.png)
(3)情境3,若本次采购的纸板裁剪做成竖式和横式无盖纸盒,并使得纸板的使用率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9c407a9e79f3612690b9cff43a08e0.png)
【知识点】 几何问题(二元一次方程组的应用)解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65bd6cdc598a67059dc4293a1694dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad0086651e05c716cec1ba31cf09f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f50721b109e9d0dd54c19d2c3158b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee74bec70d68998ec523fa5812760336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e40f98ce6627ec273cd14acf3372e06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29343388ca8b33dc98325e65382b38a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)下列与方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b51568a785c2078fd8ef7688c2df31.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52c2ad80cb70ad92863984f5e0f76df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6669fe4ee86b39c796f905814754471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7f567a560bde40b067a2a2f4d222ce.png)
(2)方程组(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9ee880ee69e4b47e0cf1adbf686459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0023b14251d12723b8931a99b847d91d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083c0df401598abdd851a376d150601a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee0373742310bd58ba0ac7d8fbc68d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)