document.write( "Question 272065: Please solve this using the elimination method.\r
\n" ); document.write( "\n" ); document.write( "9x + 2y = 2
\n" ); document.write( "21x + 6y = 4
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Algebra.Com's Answer #199068 by checkley77(12844)\"\" \"About 
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9x+2y=2 multiply by -3 & add.
\n" ); document.write( "21x+6y=4
\n" ); document.write( "-27x-6y=-6
\n" ); document.write( "---------------
\n" ); document.write( "-6x=-2
\n" ); document.write( "x=-2/-6
\n" ); document.write( "x=1/3 ans.
\n" ); document.write( "9*1/3+2y=2
\n" ); document.write( "3+2y=2
\n" ); document.write( "2y=2-3
\n" ); document.write( "2y=-1
\n" ); document.write( "y=-1/2 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "21*1/3+6*-1/2=4
\n" ); document.write( "7-3=4
\n" ); document.write( "4=4
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