Question 893334
1.{{{4x-3y=28}}}
2.{{{9x-y=-6}}}
Multiply eq. 2 by {{{-3}}} and add to eq. 1,
{{{4x-3y+(-27x+3y)=28+18}}}
{{{-23x=46}}}
{{{x=-2}}}
Then use either equation to solve for {{{y}}}
{{{9(-2)-y=-6}}}
{{{-18-y=-6}}}
{{{-y=12}}}
{{{y=-12}}}