You have the equation:

$3x - 3y = 18$

To simplify, we can divide through by 3:

$x - y = 6$

This equation represents a linear relationship between $x$ and $y$. If you want to solve for one variable in terms of the other, you can isolate either $x$ or $y$.

For example, to solve for $x$ in terms of $y$:

$x = y + 6$

Or to solve for $y$ in terms of $x$:

$y = x - 6$

Would you like to go further and find specific values for $x$ and $y$ if additional information is provided? Or would you like to explore other steps related to this equation?

---

Here are 5 related questions:

1. How do you solve a system of two linear equations?
2. What is the graphical interpretation of the equation $x - y = 6$?
3. How do you find the slope of a line from its equation?
4. What happens to the graph if we change the right-hand side of the equation?
5. How can we solve for $x$ and $y$ if there's another equation?

Tip: Always try to simplify equations by factoring out common terms, like the 3 in this example, to make the problem easier to handle.