定义“☆”运算
,例如:
,若
,则x的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a980ae75e598df0d4eca3caaf8d9e3be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33f9e3a3e467180049b85170e9b322f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f436fcb3670c4f42fed9e1d55667de.png)
A.8 | B.6 | C.4 | D.2 |
更新时间:2023-01-26 09:49:32
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【知识点】 解一元一次方程(二)——去括号解读