Answer:
x = 22
Step-by-step explanation:
6x - 7 = 103 - x + 2x
=> 6x - 7 - 103 + x - 2x = 0
=> 5x - 110 = 0
=> 5x = 110, x = 22
If 2 supplementary angles have 1 angle that is in a triangle, the other supplementary angle will be equal to the sum of the other 2 angles (sorry if it's really confusing.)
