Answer:
39
Step-by-step explanation:
(x + 43) +29 + (180 - 111) = 180 ----- (x+43 = 1st angle; 29 = 2nd angle (vertical angle theorem); 180 -111 = 3rd Angle (Linear Pair); 180 = Sum (Tirnagle Angle Sum))
x + 43 + 29 + 69 = 180 -->
x + 141 = 180 -->
x = 39
