y = 4x + 7 --- (1)
3x - 5y = 16 --- (2)
Substituting (1) into (2), we will have:
3x - 5(4x + 7) = 16
3x - 20x - 35 = 16
-17x = 35 + 16
-17x = 51
x = 51 / -17
x = -3
Substituting x = -3 into (1), we will get:
y = 4(-3) + 7
y = -12 + 7
y = -5
Hence, x = -3 and y = -5