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.
integer solutions ((x%5E2 %2B y%5E2) mod 2) %3D 1 and ((x - 2 y) mod 3) %3D 2
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random