(1) 2x+39-3x=31
39-x=31
x=39-31
x=8
(2)2x-4x+52=16
52-2x=16
2x=52-16
2x=36
x=18
(3)10x+8x+32+5(38-x-x-4)=266
18x+32+5(34-2x)=266
18x+32+170-10x=266
8x+202=266
8x=266-202
8x=64
x=8
(1) 2x+39-3x=31
39-x=31
x=39-31
x=8
(2)2x-4x+52=16
52-2x=16
2x=52-16
2x=36
x=18
(3)10x+8x+32+5(38-x-x-4)=266
18x+32+5(34-2x)=266
18x+32+170-10x=266
8x+202=266
8x=266-202
8x=64
x=8