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.
solve 3x+2y+z=1, 5x+3y+4z=2, x+y+z=-1
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random