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 2x + 4y + z = 1, 3x + 5y = 1, 5x + 13y + 7z = 4
solve 2x + 4y + z = 1, 3x + 5y = 1, 5x + 13y + 7z = 4
Natural Language
Math Input
Extended Keyboard
