4(2x-7)-2(x-1)=3x-5

问题描述:

4(2x-7)-2(x-1)=3x-5

x=7/3

4(2x-7)-2(x-1)=3x-5
8x-28-2x+2=3x-5
6x-26 = 3x-5
6x-3x =26-5
3x =21
x=7

4*2x-4*7-2x+2*1=3x-5
8x-28-2x+2=3x-5
8x-2x-3x=28-2-5
3x=21
x=21÷3
x=7