Question

Y = 4x + 5
y = x2 + 12x + 20​

Answer 1

Explanation:

`y = 4x + 5 \\ y = 2x + 12x + 20 \\ 4x + 5 = 12x + 2x + 20 \\ 4x - 12x - 2x = 20 - 5 \\ - 10x = 15 \\ - x = (15)/(10) \\ x = - (3)/(2)`

`x = - (3)/(2) \\ 4( - (3)/(2) ) + 5 = y \\ - 6 + 5 = y \\ y = - 1`