Question 853325
{{{x-y=4}}}
{{{y=x-4}}}
.
.
{{{2x+3y=13}}}
{{{3y=-2x+13}}}
{{{y=-(2/3)x+13/3}}}
.
.
{{{drawing(300,300,-2,6,-2,6,grid(1),circle(5,1,0.2),
graph(300,300,-2,6,-2,6,x-4,-(2/3)x+13/3))}}}