Question 372570
{{{x+y+2=0}}}
{{{y=-x-2}}}
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{{{drawing(300,300,-2,2,-2,2,grid(1),graph(300,300,-2,2,-2,2,0,-x-2))}}}
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{{{3x-4y=5}}}
{{{-4y=-3x+5}}}
{{{y=(3/4)x-5/4}}}
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{{{drawing(300,300,-2,2,-2,2,grid(1), graph(300,300,-2,2,-2,2,0,-x-2,(3/4)x-5/4))}}}
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This example is not really appropriate for solving graphically because of the nature of the solution and highlights some of the drawbacks especially in getting an exact answer.
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Solving the problem algebraically,
{{{-x-2=(3/4)x-5/4}}}
{{{-(7/4)x=8/4-5/4}}}
{{{-(7/3)x=3/4}}}
{{{highlight(x=-3/7)}}}
Then using either equation to solve for {{{y}}}.
{{{-3/7+y+2=0}}}
{{{y=-14/7+3/7}}}
{{{highlight(y=-11/7)}}}
So unless you have graph paper with (1/7) divisions you wouldn't get the exact answer.