
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 the price of a batch of beams is 6210 wen, and the transportation cost for each beam is 3 wen, then after taking one less beam, the remaining beams' transportation cost is exactly equal to the price of one beam, determine the equation that satisfies the question.

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