Step-by-step explanation:
[tex]y = 4x + 5 \\ y = 2x + 12x + 20 \\ 4x + 5 = 12x + 2x + 20 \\ 4x - 12x - 2x = 20 - 5 \\ - 10x = 15 \\ - x = \frac{15}{10} \\ x = - \frac{3}{2} [/tex]
[tex]x = - \frac{3}{2} \\ 4( - \frac{3}{2} ) + 5 = y \\ - 6 + 5 = y \\ y = - 1[/tex]
