1. **State the problem:** You asked, "From where did the 9 come from?" in the expression $\frac{9}{x}$. Let's clarify this. 2. **Recall the original problem:** The original equation was $9^x = 81^y$ and the question asked for the value of $\frac{9}{x}$. 3. **Understanding the 9 in $\frac{9}{x}$:** The 9 in the numerator is part of the expression you want to find, it is not derived from the equation but given as part of the problem statement. 4. **Summary:** The 9 is simply a number given in the expression $\frac{9}{x}$ you were asked to evaluate, not something that comes from the equation $9^x = 81^y$ itself. If you want, I can help you find the value of $\frac{9}{x}$ in terms of $y$ as done before.