y = -2x -1 and x = -2
Simply plug in -2 for x in our given equation :)
y = -2(-2) - 1
Simplify.
y = 4 - 1
Simplify.
So, y =3
x = -2, y = 3
To check our work, simply plug -2 in for x, and 3 in for y.
y = -2x - 1
(3) = -2(-2) - 1
Simplify.
3 = 4 - 1
3 = 3
Therefore, x = -2, y = 3
~Hope I helped!~