3y-[y-2(y-3)]=4-[2(y+2)-3y]
的有关信息介绍如下：![3y-[y-2(y-3)]=4-[2(y+2)-3y]](/upload/images/2023/0920/c07562b6.png)
3y-[y-2(y-3)]=4-[2(y+2)-3y]3y-y+2(y-3)=4-2(y+2)+3y3y-y+2y-6=4-2y-4+3y3y-y+2y+2y-3y=6+4-4 3y=6 y=2
3y-[y-2(y-3)]=4-[2(y+2)-3y]
Simone
发布于 2023-11-04 01:59:40
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