Question 1193117
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Opposite sides AB and CD are congruent; as are opposite sides BC and DA.  Using the given information,<br>
{{{x+y=2x-y-2}}}
{{{x+2y=3x-3y+3}}}<br>
Put each equation n Ax+By=C form....<br>
{{{x-2y=2}}}
{{{2x-5y=-3}}}<br>
My preference would be to solve using elimination.  Multiply the first equation by -2 and add the two equations to eliminate x.<br>
{{{-2x+4y=-4}}}
{{{2x-5y=-3}}}
{{{-y=-7}}}
{{{y=7}}}<br>
Substitute y=7 in any earlier equation to solve for x. I leave that little bit to you.<br>