Question 335547
1.{{{y=-x}}}
2.{{{y-x=-3}}}
Substitute eq.1 into eq. 2,
{{{-x-x=-3}}}
{{{-2x=-3}}}
{{{highlight(x=3/2)}}}
Then use eq. 1,
{{{highlight(y=-3/2)}}}
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{{{drawing(300,300,-3,3,-3,3,circle(3/2,-3/2,.2),grid(1),graph(300,300,-3,3,-3,3,-x,x-3))}}}