
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
Two boats set off from piers $A$ and $C$. The speed of the boat traveling from $A$ is 7 km/h, and from $C$ is 3 km/h. Determine the time it takes for the boats to meet if the distance between the piers is 20 km, and the current of the river flows from $A$ to $C$ at 2 km/h.

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