
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
A store buys a batch of soccer balls at a wholesale price of 30 yuan each and sells them at a retail price of 45 yuan each. When there are 30 soccer balls remaining, the store has already made a profit of 1500 yuan. How many soccer balls did the store originally purchase?

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