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.
-((12c - 6a) / (3 - c)) = -((6a - 12c) / (c - 3))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random