Question

Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).
x - 2y = -4
2x - y = 1

Answer 1

x- 2y = -4
x=2y-4


2(2y-4)-y =1
4y-8-y=1
3y-8=1
3y=9
y=3

x-2y=-4
x-2(3)=-4
x-6=-4
x=2

(x,y) = (2, 3)