Find the value of x in the figure below. Brainlyest!

Answer:
x = 42°
Step-by-step explanation:
Fact: The sum of the exterior angles will be 360°.
(3x + 45) + (2x - 30) + (5x - 75) = 360
combine like terms:
10x - 60 = 360
add 60 to each side of the equation:
10x = 420
divide both sides by 10:
x = 42°