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.
12-32(-1.9+2)+7(4.1-4)-12(-0.9+1)
12-32(-1.9+2)+7(4.1-4)-12(-0.9+1)
Natural Language
Math Input
Extended Keyboard
