The image you provided is asking which step to perform first to solve the equation $C = \frac{5}{9}(F - 32)$ for $F$. This equation is used to convert Celsius temperatures to Fahrenheit.

To solve for $F$, follow these steps:

1. First Step: Multiply both sides by $\frac{9}{5}$ to eliminate the fraction. This gives: $\frac{9}{5}C = F - 32$

Among the options, the correct first step is "Multiply both sides by 9/5."

Would you like further details or have any questions?

Here are some related questions:

1. How do you convert Fahrenheit to Celsius?
2. What is the formula to convert Kelvin to Celsius?
3. Can you derive the formula for converting Celsius to Fahrenheit?
4. How do you solve for $F$ in the equation $F = \frac{9}{5}C + 32$?
5. How would you graph the relationship between Fahrenheit and Celsius?

Tip: Always remember to eliminate fractions first when solving equations to simplify your work.