1. The problem asks for the possible values of $x$ and $y$, but no specific equation or condition is given. 2. To find possible values of variables, we need an equation or inequality involving $x$ and $y$. 3. Without any equation or constraint, $x$ and $y$ can be any real numbers. 4. Therefore, the set of possible values for $x$ and $y$ is all real numbers: $x \in \mathbb{R}$ and $y \in \mathbb{R}$. 5. If you provide an equation or condition, I can help find specific possible values.