
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
Organize a batch of books, which takes 40 hours to complete by one person. Now, it is planned that a group of people will work for 4 hours first, and then 2 more people will join them to work together for another 8 hours to complete the task. Assuming these people work at the same efficiency, how many people should be arranged to work first? Let $x$ be the number of people arranged to work first, and we can set up the equation:

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