x = 26
These angles are supplementary because they form a line, so they are 180 degrees.
Add them together and make them equal to 180, then work backwards.
4x + 4 + 4x - 32 = 180
Add like terms
8x - 28 = 180
Add 28 on both sides
8x = 208
Divide by 8 to isolate x
x = 26