Can u please help I need the answer to this equation

Answer:
17°
Step-by-step explanation:
ΔXWZ = ΔYWZ (they are congruent triangles so ∠XWZ = ∠YWZ)
5x - 8 = 9x - 28
Rearrange and collect the like terms
-8 + 28 = 9x - 5x
20 = 4x
x = 5°
∠YWZ = 9x - 28
sub x = 5
= 45 - 28
= 17°