It's umm uh... Magic yea that's how it works... Toats magic... Wow amazing i'm the great Wavilo a magician who makes real magic tricks that are real... (Scroll down if you want to ruin the magic) Okay so the way it really works is that the equation is actually just a long long long verison of (x / x) * 3 which will always equal 3. Think about it, something divided by itself will always be 1, and 1 * 3 will always be 3. So NX will always be 3.