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.
-((10 + 9) * 8 - 7) * (6 - 5 * 4) - 3 * (2 + 1)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
