1. The problem involves the term $-3xy$ as part of an equation or expression. 2. If you provide the full equation, I can help solve or simplify it involving the term $-3xy$. 3. Without the complete context, we can only note that $-3xy$ represents the product of $-3$, $x$, and $y$. 4. Please share the entire problem or more details so I can assist you better.