Question 905940
{{{y=x-1}}}
{{{drawing(300,300,-5,5,-5,5,grid(1),graph(300,300,-5,5,-5,5,x-1))}}}
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{{{3x-y=9}}}
{{{y=3x-9}}}
{{{drawing(300,300,-5,5,-5,5,grid(1),circle(4,3,0.2),graph(300,300,-5,5,-5,5,x-1,3x-9))}}}