Question 558534
{{{3x+2y=-4}}}
{{{x+2y=-8}}}
Move x over to other side
{{{2y=-x-8}}}
Usually you would have to divide by two, however since you can directly substitute into the other equation, there is no need.
Substitute -x-8 for 2y the first equation 
{{{3x-x-8=-4}}} 
Simplify
{{{2x-8=-4}}}
Move -8 over by adding eight
{{{2x=4}}}
{{{x=2}}}
thus
{{{y=3}}}
To solve for y plug x into any of the original equations