Answer:
83
Step-by-step explanation:
Theorem:
The measure of any exterior angle of a triangle is equal to the sum of the measures of the remote interior angles.
The angle measuring x is an exterior angle.
The angles measuring x - 39 and x - 44 are the remote interior angles to the exterior angle.
According to the theorem:
x - 39 + x - 44 = x
2x - 83 = x
x - 83 = 0
x = 83
