3(4x-5)-2(x-2)=9(x-1)

问题描述:

3(4x-5)-2(x-2)=9(x-1)

3(4x-5)-2(x-2)=9(x-1)
12x-15-2x+4=9x-9
10x-11=9x-9
10x-9x=11-9
x=2