Solve for system of equations

-3y-4x=-11

3y-5x=-61

X = 8

Y = - 7

If you use elimination:

-3y-4x=-11

3y-5x=-61

Add the two equations and get

-9x=-72

Divide by - 9 on both sides

X=8

Substitute 8 in for x

-3y-4 (8) = -11

Simplify

-3y-32=-11

Add 32 on both sides

-3y=21

Divide by - 3 on both sides

Y=-7