document.write( "Question 314273: 2/17 = x-6/x+9 If I have to use LCD 17 is a prime number and 9 is 3X3 meaning that I need to multiply by 51 to get rid of denominators then 51(2/17) = 51(x-6/x+9) then I got stuck can you please help me understand what will follow? \n" ); document.write( "
Algebra.Com's Answer #224744 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Assume the problem is: \n" ); document.write( " \n" ); document.write( "The LCD is 17(x+9), but with this problem you can cross multiply \n" ); document.write( "17(x-6) = 2(x+9) \n" ); document.write( ": \n" ); document.write( "17x - 102 = 2x + 18 \n" ); document.write( ": \n" ); document.write( "17x - 2x = 18 + 102 \n" ); document.write( ": \n" ); document.write( "15x = 120 \n" ); document.write( "x = \n" ); document.write( "x = 8 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution in the original equation: \n" ); document.write( " \n" ); document.write( " |