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document.write( "7x+y=20 3x+2y=18 \n" );
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Algebra.Com's Answer #92919 by checkley71(8403)![]() ![]() ![]() 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 \n" ); document.write( "---------------------------- \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 \n" ); document.write( " |