Question 1072304
{{{5x+4y=12}}}
{{{3x+4y=4}}}
{{{4y=4-3x}}}
{{{5x+4-3x=12}}}
{{{2x+4=12}}}
{{{2x=8}}}
{{{x=4}}}
{{{3(4)+4y=4}}}
{{{4y = 4-12=-8}}}
{{{y=-2}}}