(1)计算:
①
;
②
.
(2)先化简,再求值:
,其中
,
.
(3)解方程:①
;
②
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0feec4237ce564fc6932f7c566aad072.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8927e690d9b73a892d1e7a43b1b3f0b2.png)
(2)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb639da6fc5ebef957c0c0b7467f8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
(3)解方程:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cabf496f2d8f5a414246c35cae4beb2.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc503a4bc23fea227b8b42376a3776f2.png)
22-23七年级上·河南洛阳·期末 查看更多[4]
河南省洛阳市涧西区第五十六中学2022-2023学年七年级上学期期末数学试题(已下线)专题3.22 解一元一次方程100题(分层练习)(提升练)-2023-2024学年七年级数学上册基础知识专项突破讲与练(人教版)(已下线)专题4.22 解一元一次方程100题(分层练习)(提升练)-2023-2024学年七年级数学上册基础知识专项突破讲与练(苏科版)(已下线)专题5.30 求解一元一次方程100题)(综合练)-2023-2024学年七年级数学上册基础知识专项突破讲与练(北师大版)(2)
更新时间:2023-08-22 16:58:00
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