Answer:
x=43
Explanation:
The angle between x and 47 is a right angle because it is a vertical angle to the right angle and vertical angles are equal.
Starting with x, we add x + the right angle +47 and we have a straight line. We know straight lines are 180 degrees
x + 90 + 47 = straight line
x+ 137 = 180
Subtract 137 from each side
x+137-137 = 180-137
x = 43