Question 325090
{{{240/x+240/(x-20)=(240(x-20))/(x(x-20))+(240x)/(x(x-20))=(240x-4800)/(x(x-20))+(240x)/(x(x-20))=(240x-4800+240x)/(x(x-20))=(480x-4800)/(x(x-20))=(480x-4800)/(x^2-20x)}}}


So {{{240/x+240/(x-20)=(480x-4800)/(x^2-20x)}}}