document.write( "Question 554355: Solve by the elimination method.\r
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document.write( "4x+6y=14
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document.write( "3x-6y= -21 \n" );
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Algebra.Com's Answer #361311 by Kasko(2)![]() ![]() ![]() You can put this solution on YOUR website! Solve by the elimination method.\r \n" ); document.write( "\n" ); document.write( "4x+6y=14 \n" ); document.write( "3x-6y= -21 \n" ); document.write( "7x=-7 \n" ); document.write( "X=-1 \n" ); document.write( "3x-6y=-21 \n" ); document.write( "3(-1)-6y=-21 \n" ); document.write( "-3-6y=-21 \n" ); document.write( "+3. +3 \n" ); document.write( "-6y=-18 \n" ); document.write( "/-6. /-6 \n" ); document.write( "y=3 \n" ); document.write( "(-1,3) \n" ); document.write( "CHECK \n" ); document.write( "4(-1)+6(3)=14 \n" ); document.write( "14=14 \n" ); document.write( "3(-1)-6(3)=-21 \n" ); document.write( "-21=-21 \n" ); document.write( " |