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.
integer solve a+b+c=15, a+11b+13c=d^2, a>0, b>0, c>0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random