document.write( "Question 315244: Please help me set up and solve this problem. The reciprocal of twice an integer added to the reciprocal of two more than twice the integer is 7/24. What is the integer? \n" ); document.write( "
Algebra.Com's Answer #225559 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The reciprocal of twice an integer added to the reciprocal of two more than twice the integer is 7/24. \n" ); document.write( " What is the integer? \n" ); document.write( ": \n" ); document.write( "Let x = the integer \n" ); document.write( " \n" ); document.write( "multiply equation by 24x(2x+2) \n" ); document.write( "24x(2x+2)* \n" ); document.write( "cancel the denominators, results: \n" ); document.write( "12(2x+2) + 24x = 7x(2x+2) \n" ); document.write( ": \n" ); document.write( "24x + 24 + 24x = 14x^2 + 14x \n" ); document.write( ": \n" ); document.write( "48x + 24 = 14x^2 + 14x \n" ); document.write( ": \n" ); document.write( "Combine on the right \n" ); document.write( "0 = 14x^2 + 14x - 48x - 24 \n" ); document.write( ": \n" ); document.write( "A quadratic equation \n" ); document.write( "14x^2 - 34x - 24 = 0 \n" ); document.write( ": \n" ); document.write( "simplify, divide by 2 \n" ); document.write( "7x^2 - 17x - 12 = 0 \n" ); document.write( ": \n" ); document.write( "factor this to \n" ); document.write( "(7x+4)(x-3) = 0 \n" ); document.write( ": \n" ); document.write( "The positive solution is all we want here \n" ); document.write( "x = 3 is the integer, that everyone is waiting for! \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "See if this is true \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |