Question 1156521
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7x-y=14
3x+4y=6
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{{{4*E1}}}-------------
{{{system(28x-4y=56,3x+4y=6)}}}


{{{E1+E2}}}:
{{{31x=62}}}
{{{highlight(x=2)}}}


{{{y=7x-14}}}
{{{y=7*2-14}}}
{{{highlight(y=0)}}}