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.
1=A+B, 2=2A+B+C, 3=4A+C
1=A+B, 2=2A+B+C, 3=4A+C
Natural Language
Math Input
Extended Keyboard