Question 795543
first step is to rewrite each equation in the standard line equation form, y = mx +b
x + 2y = -2
2y = -x -2
y = -x/2 -1
-3x - 6y = 6
-x -2y = 2
-2y = x +2
y = -x/2 -1
we see that both equations are the same
there are infinitely many solutions
graph is
{{{ graph( 300, 200, -10, 10, -10, 10, -x/2 -1) }}}