观察下列解不等式的步骤,并回答问题:哪一步开始出错?请你完整写出解这个不等式的过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e9c490f77d275b3782ea4e7466c9e5.png)
解:
…①
…②
…③
…④
…⑤.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e9c490f77d275b3782ea4e7466c9e5.png)
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ac8d3570026bd17d7f9251b246d9ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84847a5848d88068de3a49190ec5ffd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09adb4176862a94c55ea6959b5728380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c946c6a88fedec7b7bc503c2e6c927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
更新时间:2023-09-02 15:00:19
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【知识点】 求一元一次不等式的解集解读