document.write( "Question 329377: Please help me to solve this system algebraically:
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document.write( "1/2x+2/3y=5/6
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document.write( "5/12x+7/12y=3/4
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Algebra.Com's Answer #236051 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 1/2 x+2/3y=5/6 \n" ); document.write( "LCD is 6 \n" ); document.write( "3x+2y /6 =5/6 \n" ); document.write( "3x+2y=5*6/6 \n" ); document.write( "3x+2y=5...................1\r \n" ); document.write( "\n" ); document.write( "5/12 x+7/12 y=3/4 \n" ); document.write( "5x+7y /12= 3/4 \n" ); document.write( "5x+7y= 12*3/4 \n" ); document.write( "5x+7y=9...................2 \n" ); document.write( ".. \n" ); document.write( "Multiply equation 1 by -5 and equation 2 by 3 and add them \n" ); document.write( "-15x-10y+15x+21y=-25+27 \n" ); document.write( "11y=2 \n" ); document.write( "y = 2/11 \n" ); document.write( "plug the value of y in equation 1 \n" ); document.write( "3x+2*2/11 =5 \n" ); document.write( "3x=5-4/11 \n" ); document.write( "3x=51/11 \n" ); document.write( "x= 17/11 \n" ); document.write( " |