Answer:
[tex]x = 8\\y=-7[/tex]
Step-by-step explanation:
[tex]-3y-4x=-11\\3y-5x=-61[/tex]
In order to eliminate one of the variables you can add both equations.
[tex]-9x=-72\\x=\frac{-72}{-9} \\x=8[/tex]
Replace in one of the main equations to find y
[tex]3y-5x=-61\\3y-5(8)=-61\\3y-40=-61\\3y=-61+40\\3y=-21\\y=\frac{-21}{3} \\y=-7[/tex]
Replace in one of the main equations to prove that your answers are correct.
[tex]-3y-4x=-11\\-3(-7)-4(8)=-11\\21-32=-11\\-11=-11[/tex]
