Question 317735
1.{{{y=2x+16}}}
2.{{{2x-5y=-16}}}
Substitute eq. 1 in eq. 2,
{{{2x-5(2x+16)=-16|||
{{{2x-10x-80=-16}}}
{{{-8x-80=-16}}}
{{{-8x=64}}}
{{{highlight(x=-8)}}}
Then use eq.1 to solve for y,
{{{y=2(-8)+16}}}
{{{y=-16+16}}}
{{{highlight(y=0)}}}