Question

Use the substitution method to solve the system of equations. choose the correct ordered pair. 2x - y = 103x - 2y = 8

Answer 1

$2x-y=10\Rightarrow 2x-10=y \\ \Longrightarrow 3x-2y=8\Rightarrow 3x-2(2x-10)=8 \\ 3x-4x+20=8 \\ -x=8-20=-12 \\ x=12 \\ \\ y=2(12)-10=24-10 \\ y=14 \\ \\ (x,y)=(12,14)$