Question 316637
1.{{{-8x + 8y = -16}}}
2.{{{2x + 6y = -28}}} 
Multiply eq. 2 by 4 and add to eq. 1,
{{{-8x+8y+8x+24y=-16-112}}}
{{{32y=-128}}}
{{{highlight(y=-4)}}}
Then from eq. 2,
{{{2x-24=-28}}}
{{{highlight(x=-2)}}}