Question

I need to find y but I think I need to solve for x first?

Answer 1

I'm confused, it shows y at a right angle = 90°
we can solve for x
(x-7) and (x-3) = x=7

Answer 2

Y is the right triangle so y = 90 degrees
x - 7 + 3x - 3 = 90
4x - 10 = 90
4x = 100
x = 25