Question 140769
Solving the problem graphically it looks like (1,-4).
Check your answer using your 2 equations.
{{{x=1}}}
{{{y=-x/2-7/2}}}
{{{y=-1/2-7/2}}}
{{{y=-4}}}
{{{x=1}}}
{{{y=-1-3x}}}
{{{y=-1-3(1)}}}
{{{y=-4}}}
Good answer. 
{{{ graph( 300, 300, -2, 2, -5, 5, -0.5x-3.5, -1-3x) }}}