求未知数的值.
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c9555f227b659cfc7c3ee246a713a7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6c5cd4e88797be8c36215112b417c0.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c5181744bd6db389c45195b64e7f47.png)
更新时间:2023-09-22 22:24:26
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【知识点】 解一元一次方程(一)——合并同类项与移项解读
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解答题-计算题
|
较易
(0.85)
【推荐2】解方程:
.
解:方程两边同乘___________,得
___________
___________.
去括号,得
___________.
移项,得
___________
___________.
合并同类项,得___________
___________.
两边同除以___________,得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79144f845e6036d0c135214d72aa3fc.png)
解:方程两边同乘___________,得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e3c1d8f4f873e292524251141b7bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
去括号,得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d214ff2c99bbb3877c252acbdf7280.png)
移项,得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febd7838a5b601d3d0f93819d2991be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e254fbc50bd53d7095b542268b248d.png)
合并同类项,得___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
两边同除以___________,得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4350cbec20d3efdaf57faa8c2621204b.png)
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