Answer:
x = 2.
y = 6.
Explanation:
Consider the triangle on the left.
Because there are 2 equal angles at the vertex on the bottom right:
3/9 = x/(8 - x)
1/3 = x / (8 - x)
3x = 8 - x
4x = 8
x = 2 (answer).
Similarly, for the second triangle:
3/y = 2/4
3/y = 1/2
y = 6
(answer).