
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The function f(x) is defined as follows:
$$
f(x) =
\begin{cases}
2x - 1, & \text{-1 $\leq$ x $<$ 3} \\
f(x-4), & \text{x $\geq$ 3}
\end{cases}
$$
Find the value of f(9).

Present the answer in LaTex format: \boxed{Your answer}
user