Question 831326
1.{{{2x = 2y + 40}}}
2.{{{3y = 72 - 9x}}}
From eq. 2,
{{{y=24-3x}}}
Substitute into eq. 1,
{{{2x=2(24-3x)+40}}}
{{{2x=48-6x+40}}}
{{{8x=88}}}
{{{highlight(x=11)}}}
Then use either equation to solve for y.
{{{y=24-3x}}}
{{{y=24-3(11)}}}
{{{y=24-33}}}
{{{highlight(y=-9)}}}