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