document.write( "Question 24663: \"solve each system by elimination, first clear denominators\"\r
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document.write( "(x+6)/5 + (2y-x)/10 = 1\r
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document.write( "(x+2)/4 + (3y+2)/5 = -3 \r
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document.write( "thanks! \n" );
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Algebra.Com's Answer #13163 by algebrapro18(249)![]() ![]() ![]() You can put this solution on YOUR website! (x+6)/5 + (2y-x)/10 = 1 \n" ); document.write( "(x+2)/4 + (3y+2)/5 = -3 \r \n" ); document.write( "\n" ); document.write( "to clear the fractions from the first equation all you have to do is multiply the entire equation by 10. you will end up with: \r \n" ); document.write( "\n" ); document.write( "2(x+6)+(2y-x)=10 \r \n" ); document.write( "\n" ); document.write( "simplifying you get \r \n" ); document.write( "\n" ); document.write( "2x+12+2y-x=10 \n" ); document.write( "x+2y+12=10 \n" ); document.write( "x+2y=-2 \r \n" ); document.write( "\n" ); document.write( "to clear the fractions from the secound equation all you have to do is multiply the entire equation by 20. you will end up with \r \n" ); document.write( "\n" ); document.write( "5(x+2)+4(3y+2)=-60 \r \n" ); document.write( "\n" ); document.write( "simplifying you get \r \n" ); document.write( "\n" ); document.write( "5x+10+12y+8=-60 \n" ); document.write( "5x+12y+18=-60 \n" ); document.write( "5x+12y=-78 \r \n" ); document.write( "\n" ); document.write( "now we multiply equation 1 by -5 and add the 2 equations together \r \n" ); document.write( "\n" ); document.write( "-5(x+2y=-2) \n" ); document.write( "-5x-10y=10 \r \n" ); document.write( "\n" ); document.write( "5x+12y=-78 \n" ); document.write( "-5x-10y=10 \n" ); document.write( "============ \n" ); document.write( "2y=-68 \n" ); document.write( "y=-34 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "now pluging that into equation 2 \r \n" ); document.write( "\n" ); document.write( "5x+12(-34)=-78 \n" ); document.write( "5x-408=-78 \n" ); document.write( "5x=330 \n" ); document.write( "x=66 \r \n" ); document.write( "\n" ); document.write( "and that is the answer (66,-34) \n" ); document.write( " |