Question

WILL GIVE MEDAL

Answer 1

http://prntscr.com/566f0l

Answer 2

Multiply the first equation by -2,\[\Large\rm -6x-2y=-2\]\[\Large\rm \quad6x+2y=-9\]Then add the equations, what do you get? c:

Answer 3

-6x-2y=-2
6x+2y=-9
x=-11?

Answer 4

-11 on the right side, that looks good.

But on the left side, you're combing 6x and -6x.
And also 2y and -2y.

If you were combining 3potatoes and -3potatoes,
you would end up with 0potatoes.

Answer 5

so your saying i need to do...
x+y=-11?

Answer 6

We want to add these two equations together.