document.write( "Question 113711: If fifteen less than two times a number is divided by six more than the number, the result is four less than nine times the reciprocal of that number. Find the number. \n" ); document.write( "
Algebra.Com's Answer #82759 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If fifteen less than two times a number is divided by six more than the number, the result is four less than nine times the reciprocal of that number. Find the number \n" ); document.write( "---------------- \n" ); document.write( "Let the number be \"x\". \n" ); document.write( "EQUATION: \n" ); document.write( "(2x-15)/(x+6) = (9/x)-4 \n" ); document.write( "(2x-15)/(x+6) = (9-4x)/x \n" ); document.write( "Cross-multiply to get: \n" ); document.write( "2x^2-15x = (x+6)(9-4x) \n" ); document.write( "2x^2-15x = -4x^2-15x+54 \n" ); document.write( "6x^2=54 \n" ); document.write( "x^2 = 9 \n" ); document.write( "x = 3 or x = -3 \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |