Question

-5x + y = -6

7x + 2y = 39

Answer 1

x=3, y=9

Explanation:

Mulriplying the first equation by 2 yields -10x+2y=-12.

Subtracting the second equation from this gives -17x=-51, and thus x=3.

Substituting this back into the first equation gives -15+y=-6, and thus y=9.