Answer:
x=4 y=6
Step-by-step explanation:
3x + 4y = 36
y = -1/2x + 8
3x + 4(-1/2x + 8) = 36
3x - 2x + 32 = 36
x + 32 = 36
x = 36 - 32
x = 4
y = -1/2(4) + 8
y = -2 + 8
y = 6