Answer:
x = -7
Step-by-step explanation:
The interior angles of a triangle should all add up to 180 degrees.
So, we set the equation up as:
(x + 52) + 75 + 60 = 180
Then solve for x:
(x + 52) + 75 + 60 = 180
(x + 52) + 135 = 180
x + 52 = 180 - 135
x = 45 - 52
x = -7
