Answer:
X = 51
Step-by-step explanation:
A triangle = 180
3x-22 can be subtracted from 180, part of a supplementary angle pair
80 + x + (180-(3x-22)) = 180
80 + x + 180 - 3x +22
-2x + 282 = 180
-2x = -102
x = 51
plug back in to check
