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.
((a + b ) = (c * d)) and ((a * b) = (c + d)) and (a > 0) and (a < 10)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random