Question 348421
1.{{{2-y=2x}}}
2.{{{3x+y=-1}}}
Add eq. 1 and eq. 2,
{{{2-y+3x+y=2x-1}}}
{{{3x+2=2x-1}}}
{{{highlight(x=-3)}}}
Then use either equation to solve for {{{y}}},
{{{3(-3)+y=-1}}}
{{{-9+y=-1}}}
{{{highlight(y=8)}}}