Question 256328
{{{2x-y-1=0}}}
{{{y=2x-1}}}
Graph it.
{{{drawing( 300, 300, -2, 2, -2, 2,grid( 1 ),circle( 0, 0, .05 ),graph( 300, 300, -2, 2, -2, 2, 2x-1)) }}}
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{{{2x+y=0}}}
{{{y=-2x}}}
Graph it also.
{{{drawing( 300, 300, -2, 2, -2, 2,grid( 1 ),circle( 0, 0, .05 ),graph( 300, 300, -2, 2, -2, 2, -2x,2x-1)) }}}
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Looks like the intersection point (solution) is (1/4,-1/2).
{{{drawing( 300, 300, -2, 2, -2, 2,grid( 1 ),circle( .25, -0.5, .1 ),graph( 300, 300, -2, 2, -2, 2, -2x,2x-1)) }}}