document.write( "Question 39950This question is from textbook alegbra 1
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document.write( ": please help me to solve this equation:\r
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document.write( "6x+3y=0
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document.write( "8x+5y=3\r
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document.write( "thank you soooo much!
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Algebra.Com's Answer #25373 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1st: 6x+3y=0 \n" ); document.write( "2nd: 8x+5y=3\r \n" ); document.write( "\n" ); document.write( "Multiply 1st by 5 and 2nd by 3 to get rid of the y-terms.\r \n" ); document.write( "\n" ); document.write( "1st: 30x+15y=0 \n" ); document.write( "2nd: 24x+15y=9\r \n" ); document.write( "\n" ); document.write( "Subtract the 2nd from the 1st to get: \n" ); document.write( "3rd: 6x=-9 \n" ); document.write( " x=-3/2 \n" ); document.write( "Substitute that value into the original 1st equation (or 2nd). \n" ); document.write( "6(-3/2)+3y=0 \n" ); document.write( "-9+3y=0 \n" ); document.write( "3y=9 \n" ); document.write( "y=3 \n" ); document.write( "SOLUTION: \n" ); document.write( "x=-3/2; y=3 \n" ); document.write( "Check this in the 2nd original equation. \n" ); document.write( "24(-3/2)+15(3)=9 \n" ); document.write( "-36+45=9 \n" ); document.write( "9=9 \n" ); document.write( "Cheers, \n" ); document.write( "stan H. \n" ); document.write( " \n" ); document.write( " |