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a+2a+b=3a+b的解方程
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您好亲,![](https://s.bdstatic.com/common/openjs/emoticon/img/face_205.png)
。a+2a+b=3a+b的解方程:原式=6a²+2ab+3ab+b²=6a²+5ab +b²
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咨询记录 · 回答于2022-12-03
a+2a+b=3a+b的解方程
您好亲,![](https://s.bdstatic.com/common/openjs/emoticon/img/face_205.png)
。a+2a+b=3a+b的解方程:原式=6a²+2ab+3ab+b²=6a²+5ab +b²
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_205.png)
![](https://s.bdstatic.com/common/openjs/emoticon/img/face_205.png)
相关资料:a+2a+b=3a+b的解方程(1)2a+b=3(2)3a+b=4(2)-(1),得a=1(1)*3-(2)*2,得b=1
这道题咋做,孩子不会,用方程,