3(x-12+23=35 7x-8=2x+27 5x-18=3-2x 3(2x-1)+10=37 3(x+2)*5=(x

问题描述:

3(x-12+23=35 7x-8=2x+27 5x-18=3-2x 3(2x-1)+10=37 3(x+2)*5=(x+2)
1个回答 分类:数学 2014-11-02

问题解答:

我来补答
3(x-12)+23=35
3x-36+23=35
3x=48
x=16
7x-8=2x+27
5x=35
x=7
5x-18=3-2x
7x=21
x=3
3(2x-1)+10=37
6x-3+10=37
6x=30
x=5
3(x+2)*5=(x+2)
15x+30=x+2
14x=-28
x=-2
 
 
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