4x+9y=9/:and/:2x-9y=-63

Solve through linear combination

4x+9y=9

+ 2x-9y=-63

6x = - 54

So, you get the equation 6x=54, and by diving by 6 on each side of the equation you find that x=9

Plug this into one of the original equations to find y.

4 (9) + 9y=9

36+9y=9

9y=-27

y=-3

Now we know that x=9 and y=-3, so the solution to this system of equations is (9,-3)