Question

Solve this system of equations by

using the elimination method.
3x + 3y = 18
2x+y = 4
([?], [ ])

Answer 1

solution: (x,y)=(-2,8)

Explanation:

1) 3x+3y=18

2x+y=4

2) -x-y=-6

2x+y=4

3) x=-2

4) 2x(-2)+y=4

5) y=8

6) (x,y)=(2,8)

and that is :D