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.
calculate 2(27.4 - 5.9 + 5.9 + 12.2)
calculate 2(27.4 - 5.9 + 5.9 + 12.2)
Natural Language
Math Input
Extended Keyboard