Question 857423
Add the equations together to eliminate {{{x}}}.
{{{4x-7y-4x-3y=-15-15}}}
{{{-10y=-30}}}
{{{y=3}}}
Then,
{{{4x-7(3)=-15}}}
{{{4x=-15+21}}}
{{{4x=6}}}
{{{x=3/2}}}