document.write( "Question 320376: solve by elimination method\r
\n" ); document.write( "\n" ); document.write( "6x-9y=25.5
\n" ); document.write( "7y-3x=-14
\n" ); document.write( "

Algebra.Com's Answer #229458 by checkley77(12844)\"\" \"About 
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6x-9y=25.5
\n" ); document.write( "7y-3x=-14
\n" ); document.write( "-3X+7Y=-14 MULTIPLY BY 2 & ADD TO THE FIRST EQUATION.
\n" ); document.write( "-6X+14Y=-28
\n" ); document.write( "6X-9Y=25.5
\n" ); document.write( "----------------
\n" ); document.write( "5Y=-2.5
\n" ); document.write( "Y=-2.5/5
\n" ); document.write( "Y=-.5 ANS.
\n" ); document.write( "6X-9*-.5=25.5
\n" ); document.write( "6X+4.5=25.5
\n" ); document.write( "6X=25.5-4.5
\n" ); document.write( "6X=21
\n" ); document.write( "X=21/6
\n" ); document.write( "X=3.5 ANS.
\n" ); document.write( "PROOF:
\n" ); document.write( "3*-3.5+7*-.5=-14
\n" ); document.write( "-10.5-3.5=-14
\n" ); document.write( "-14=-14
\n" ); document.write( "
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