How do i do this?

x=-5  y=15

Step-by-step explanation:

First combine like terms and put the equations in standard form.

-6x - y  = 15

5x - 2x + 2y - y = 0   equals 3x + y = 0  equals y = -3x

Go into the first equation and substitute -3x for y

-6x - (-3x) = 15

Simplify:  -6x + 3x = 15

                -3x = 15

                   x = -5

Now put -5 in for x and solve for y.

y= -3 (-5)

y=15

"a" determine whether sage found the correct quotient. show your work

step-by-step explanation: