2(5x-4)-3(x+6)=5(x-1)-x 求x.

问题描述:

2(5x-4)-3(x+6)=5(x-1)-x 求x.

10x-8-3x-18=5x-5-x
10x-3x-5x+x=-5+8+18
3x=21
x=7