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 + z = 12, 2x – y – z = -6 ,x + 3y + 5z = 44
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
