
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
The librarian of a physics and mathematics high school noticed that if the number of geometry textbooks in the school library is increased by several (whole number) times and the obtained number is added to the number of algebra textbooks, the result is 2015. If the number of algebra textbooks is increased by the same number of times and the obtained number is added to the number of geometry textbooks, the result is 1580. How many algebra textbooks are in the library?

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