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.
-x + y + 2z = 0, x - 5y - 2z = 0, 2x - 2y - 4z = 0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random