
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
Given the total cost of a batch of beams is 6210 wen, and the transportation cost for each beam is 3 wen, if the remaining beams' transportation cost after taking one less beam is exactly equal to the price of one beam, find the quantity of this batch of beams. If the quantity of this batch of beams is x, then the equation that satisfies the problem is (equation).

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