document.write( "Question 56166: solve the system
\n" ); document.write( "7x+3y=-2
\n" ); document.write( "-7x-7y=14 \n" ); document.write( "

Algebra.Com's Answer #38103 by checkley71(8403) $\"\"$ $\"About$

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7X+3Y=-2
\n" ); document.write( "-7X-7Y=14 SDDING THESE TWO EQUATIONS WE GET
\n" ); document.write( "-------------------
\n" ); document.write( "-4Y=12
\n" ); document.write( "Y=12/-4
\n" ); document.write( "Y=-3
\n" ); document.write( "7X+3*-3=-2
\n" ); document.write( "7X-9=-2
\n" ); document.write( "7X=7
\n" ); document.write( "X=7/7
\n" ); document.write( "X=1
\n" ); document.write( "PROOF
\n" ); document.write( "-7*1-7*-3=14
\n" ); document.write( "-7+21=14
\n" ); document.write( "14=14 \n" ); document.write( "

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