Question 232875
Use either equation to solve for x or y. I'll use -3x+y=6 to solve for y cuz its the easiest.

-3x+y=6
y=3x+6

now i'll substitute this into the other equation to solve for x.

7x-3(3x+6)=-14
7x-9x-18=-14
-2x=4
x=-2

now plug this in to the solution for y

y=3(-2)+6
y=-6+6
y=0

(you can plug in both solutions into the original equations to see if it works)