Question 378954
1.{{{4x+7y=8}}}
2.{{{x=19-6y}}}
Substitute eq. 2 into eq. 1,
{{{4(19-6y)+7y=8}}}
{{{76-24y+7y=8}}}
{{{-17y=-68}}}
{{{highlight(y=4)}}}
Now use either equation to solve for {{{x}}}.
{{{4x+28=8}}}
{{{4x=-20}}}
{{{highlight(x=-5)}}}