Question

Which equation results from adding the equations in this system?

-6x+4y=-8
6x-12y=14

-16y=6
-8y=6
-8y=-22
-16y=-22

Answer 1

use the second one
-8y=6

Answer 2

`-8y=6`

Explanation:

The given system of equations is;

`-6x+4y=-8`

and

`6x-12y=14`

If we add the two equations, we get;

`-6x+6x+4y+-12y=-8+14`

We combine the similar terms to obtain;

`0-8y=6`

This simplifies to;

`-8y=6`