Question 166284
1.{{{x+y=-4}}}
2.{{{2x-4y=22}}}
Multiply eq.1 by 4 and add to eq. 2,
{{{4(x+y)+(2x-4y)=4(-4)+22}}}
{{{4x+4y+2x-4y=-16+22}}}
{{{6x=6}}}
{{{highlight(x=1)}}}
From eq. 1,
{{{x+y=-4}}}
{{{1+y=-4}}}
{{{highlight(y=-5)}}}