Question

How do you solve the system of equations `3x + 3y = - 3` and `- 2x + 2y = 6`?

Answer 1

`x=-2,y=1`

Explanation:

Dividing the first equation by `3` and the second one by `2` we get the System

`x+y=-1`
`-x+y=3`
adding both we obtain

`2y=2` so `y=1`

and

`x+1=-1`
so

`x=-2`