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.
2x+3y+5z+t=10 5x+6y+7z+2t=4 6x+8y+z+3t=7 11x+2y+4z+4t=6
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random