Answer:
x = 38 degrees
Explanation:
If angle CBE = 52 degrees, then angle ABD is also 52 degrees, as the two angles are "vertical angles."
The sum of the interior angles of a triangle is 180 degrees. Therefore,
x + 52 degrees + 90 degrees = 180 degrees, and so
x = 180 - (52 + 90), or x = 38 degrees