
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 student was given an assignment consisting of 20 problems. For each correctly solved problem, the student earns 8 points; for each incorrectly solved problem, the student loses 5 points; and for each problem the student did not attempt, they receive 0 points. The student received a total of 13 points. How many problems did the student attempt to solve?

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