The values of x and y are 7.5 and 4 respectively .
Equating the measure of corresponding sides :
3y = 12
3y/3 = 12/3
y = 4
To find x :
8x + 6 = (8x + 6) + (4x + 30)
8x + 6 = 8x + 4x + 6 + 30
8x + 6 = 12x + 36
8x - 12x = 36 - 6
-4x = -30
x = 7.5
Hence, the values of x and y are 7.5 and 4 respectively .