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.
22x+4y+2z+5t=102, 8x+4y+11z+6t=264, 6x+11y+2z+3t=-711
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random