Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
((60-2*15/(x+1))*15/(x+1)-450x/(x+1)^2)/x=1800x/(x+1)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random