Te measure of x and y are -1 and 23 respectively
Triangles are known to be similar if the measure of their sides or angles are equal.
Since the triangle ABC is similar to FDE, hence:
BC = DE
3x + 8 = 5
3x = 5 - 8
3x = -3
x = -1
Similarly
y + 5 = 28
y = 28 - 5
y = 23
Hence the measure of x and y are -1 and 23 respectively