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.
3x+3y-z=1, x-2y-3z=-11, 2x+y-2z=-4
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
