hello
Do you have a picture of your question?
ok
[tex]\begin{gathered} \text{ }\frac{f}{-9}\text{ + 4 = 2} \\ \frac{f}{-9\text{ }}\text{ = 2 - 4} \\ \frac{f}{-9}\text{ = -2} \\ f\text{ = -2(-9)} \\ f\text{ = 18} \end{gathered}[/tex]It's the last choice
