Question

2x+y=-5,3x+2y=-8 by substitution method

Answer 1

x=-2;y=-1

Step-by-step explanation:

y=-5-2x

3x+2y=-8

3x+2(-5-2x)=-8

3x+(-10-4x)=-8

3x-4x=-8+10

x=-2

y=-5-2(-2)

y=-5+4

y=-1

proof:-

2(-2)-1=-5

-5=-5

3(-2)+2(-1)=-8

-8=-8