Question

Solve the system algebraically?

`2x+y=-8`
`-x+y=4`

Answer 1

`(-4,0)`

Explanation:

Take the second equation away from the first equation:
`2x-(-x)+y-y=-8-4`

`3x=-12`

`x=-4`

Putting `x=-4` into the original equation gives us:

`y=4-4=0`

`(-4,0)`