Answer:
The lines that go through all 3 sides of the triangle mean the angles are all equal. Since a triangle is 180 degrees, to find a single angle, we must divide by 3.
180 degrees / 3 = 60 degrees
Solve for X
60 = (2x + 10)
-10 from both sides:
50 = (2x)
x = 25
Solve for Y
60 = (3y + 3)
-3 from both sides:
57 = (3y)
y = 19
Hope that helps