Question

3(x-7)-(9-2x)=2(12-x)-(x-10)

Answer 1

3x-21-9+2x=24-2x-2x+10
5x-30=34-3x
x=8

Answer 2

3х-21-9+2х=24-2х-х+10
3х-21-9+2х-24+2х+х-10=0
8х-64=0
8х=64
х=8