Question 150289
1.{{{2x-y=4}}}
2.{{{3x+y=1}}} 
Add the two equations together to get rid of y,
{{{2x-y+3x+y=4+1}}}
{{{5x=5}}}
{{{x=1}}}
Now plug this value in either eq. 1 or 2 to solve for y.
{{{2x-y=4}}}
{{{2(1)-y=4}}}
{{{2-y=4}}}
{{{-y=2}}}
{{{y=-2}}}
(1,-2) is the solution.