Question

Solve the system of equations by elimination. Show all work neatly on your work page. Checking your answer is wise. :)

6x + 3y = -12

-6x - 2y = 4

Answer 1

x=2

y=-8

Explanation:

6x+3y=-12

-6x-2y=4

3y=-12-6x

y=(-12-6x)/3

y=-4-2x

substitute y

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

-6x+8+4x=4

-2x=-4

x=2

6(2)+3y=-12

12+3y=-12

3y=-24

y=-8

check:

6(2)+3(-8)=-12

12-24=-12

-6(2)-2(-8)=4

-12=16=4