## Intermediate Algebra (12th Edition)

$x=-2$ $y=1$
If we add the two equations, we can eliminate the $x$ from the system: $6x+5y=-7$ $-6x-11y=1$ $5y-11y=-6$ $y=1$ $6x+5(1)=-7$ $x=-2$ We have to check, if the solution is right. Substitute $x$ with -2 and $y$ with 1: $6(-2)+5(1)=-7$ $\checkmark$ $-6(-2)-11(1)=1$ $\checkmark$