
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
What number should be removed from the list 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 so that the average of the remaining numbers is 7.5?

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