Question 902865
{{{y=(3/4)x-1}}}
{{{y=-(4/3)x-1}}}
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{{{ -(3/4)x+y= -1}}}
{{{(4/3)x+y= -1}}}
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*[invoke solve_by_graphing "-(3/4)", 1, -1, "4/3", 1, -1]