26(8-X)-6=150
26(8-X)=156
(8-X)=6
x=2
4x-2(x+20)=40
2x=80
x=40
4x-2(100-x)=40
6x=240
x=40
4x-2(50-x)=20
6x=120
x=20
9(x-8)-8x=10
x=82