Question 362975
Multiply the second equation by -4 and add to the first.
{{{2x+12y-40x-12y=50-140}}}
{{{-38x=-90}}}
{{{highlight(x=45/19)}}}
Then use either equation to solve for {{{y}}}.
{{{2(45/19)+12y=50}}}
{{{90/19+12y=950/19}}}
{{{12y=860/19}}}
{{{highlight(y=215/57)}}}