Х²/у+6-у²/у+6

To solve the expression (x²/y + 6 - y²/y + 6), we need to simplify it by combining like terms.

First, let's simplify x²/y - y²/y:

(x² - y²)/y

Next, let's simplify the constant terms:

6 - 6 = 0

Now, we can combine both simplified terms:

(x² - y²)/y + 0

The final simplified expression is:

(x² - y²)/y