已知关于x,y的方程组
的解也是方程
的解,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928f6be8bdfa0cc2c747ed97c7cb443f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e6098e9229616e8528e4d06b49336f.png)
更新时间:2024-02-24 12:40:17
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【知识点】 已知二元一次方程组的解的情况求参数解读
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解答题-问答题
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较易
(0.85)
【推荐1】甲、乙两位同学解方程组
时,甲求得结果为
;乙因抄错了
的值,求得结果为
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/133a25b1fcb355073ff1f850b74017ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a44cbb28bf03f4cd53d452c143d4db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421df009d510c5ccbaa7fefa566ff645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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解答题-问答题
|
较易
(0.85)
【推荐2】已知关于
,
的二元一次方程组
.
(1)若方程组的解满足
,求
的取值范围.
(2)当
取(1)中最大负整数值时,求
的值.
![](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/4fb86348afc6ca566d00ebc70a5402c2.png)
(1)若方程组的解满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7280050478744f6e8d8aae23bc480696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
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