Question 1181614
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-x-2y=2

2x+3y=-3
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{{{system(-x-2y=2,2x+3y=-3)}}}


2*E1:
{{{system(-2x-4y=4,2x+3y=-3)}}}


E1+E2:
{{{-y=1}}}
{{{y=-1}}}-----------one of the variables solved
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