Question

I'LL GIVE A MEDAL AND BE A FAN!
Solve the following systems of equations. enter the y-coordinate of the solution. round your answer to the nearest tenth.
5x+2y=7
-2x+6y=9

Answer 1

Multiply the top equation by -3

Answer 2

okay and after that?

Answer 3

Add the new top equation to the second equation. This should cancel out the y term.

Answer 4

the new equation was -15-6

Answer 5

-15x-6y= -21

Answer 6

so I added -15 and -2 and got -13 so what do I do after that if then the -6y and 6y equal 0