Answer
$ x=-2$
$y=3 $
Work Step by Step
$2x+y=-1 \rightarrow$ Multiply the first equation by 2.
$x-2y=-8$
$4x+2y=-2$
$x-2y=-8$
Add the equations to eliminate y.
$ 5x=-10$
$ x=-2$
Substitute for x and solve for y.
$y=-1-2x $
$y=3 $