Answer:
x=36
Step-by-step explanation:
The top angle = 30 + 37 = 67
The supplement of the exterior angle is another interior angle of the large triangle.
180 - 103 = 77
The vertically opposite angle to x is the 3rd angle of the large triangle.
67 + 77 + x = 180
144 + x = 180
Subtract 144 from both sides
x = 180 - 144
x = 36.
