document.write( "Question 297161: Solve each system by elimination:\r
\n" ); document.write( "\n" ); document.write( " –x + 3y = 6
\n" ); document.write( " x – 9y = 9\r
\n" ); document.write( "\n" ); document.write( "Any help would be appreciated on this problem\r
\n" ); document.write( "\n" ); document.write( "Eric
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Algebra.Com's Answer #213989 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
–x + 3y = 6
\n" ); document.write( " x – 9y = 9 add.
\n" ); document.write( "---------------------
\n" ); document.write( "-6y=15
\n" ); document.write( "y=15/-6
\n" ); document.write( "y=-2.5 ans.
\n" ); document.write( "-x+3*-2.5=6
\n" ); document.write( "-x-7.5=6
\n" ); document.write( "-x=6+7.5
\n" ); document.write( "-x=13.5
\n" ); document.write( "x=13.5/-1
\n" ); document.write( "x=-13.5 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "-13.5-9*-2.5=9
\n" ); document.write( "-13.5+22.5=9
\n" ); document.write( "9=9
\n" ); document.write( "
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