
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
If Team A builds x kilometers per month, and Team B builds 1 kilometer more per month, then Team B builds x + 1 kilometers per month. Furthermore, since Team B finishes half a month earlier than Team A, and Team A takes 9/x months to complete their 9-kilometer section, then Team B takes 9/(x+1) months to complete their 12-kilometer section. Set up the equation representing the time it takes for Team B to complete their section in terms of the time it takes for Team A.

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