Question

Solve the system by substitution.

Answer 1

x=-1,y=3

Explanation:

-9x-2y=3

y=-2x+1

-9x-2(-2x+1)=3

-9x+4x-2=3

-5x=5

x=-1

-9(-1)-2y=3

9-2y=3

-2y=-6

y=3