document.write( "Question 126855: \r
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\n" ); document.write( "\n" ); document.write( "7x+y=20 3x+2y=18
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Algebra.Com's Answer #92919 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
3x+2y=18 now multiply the other equation by -2 & add them.
\n" ); document.write( "-14x-2y=-40
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\n" ); document.write( "-11x=-22
\n" ); document.write( "x=-22/-11
\n" ); document.write( "x=2 answer.
\n" ); document.write( "3*2+2y=18
\n" ); document.write( "6+2y=18
\n" ); document.write( "2y=18-6
\n" ); document.write( "2y=12
\n" ); document.write( "y=12/6
\n" ); document.write( "y=6 answer.
\n" ); document.write( "7*2+6=20
\n" ); document.write( "14=6=20
\n" ); document.write( "20=20
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