Answer:
x = 12
y = 5
Explanation:
(13x - 27) + (4x + 3) + (13x - 27) + (4x + 3) = 360 (vertically opposite angles)
34x - 48 = 360
34x = 408
x = 12
(4x + 3) + (7y + 4) = 90 (angles on right angle)
48 + 3 + 7y + 4 = 90 (substitute x)
55 + 7y = 90
7y = 35
y = 5