
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 teacher gave the children a task to multiply the number written on the board by three and add seven to the result. Kamča solved the task correctly. Her friend Růža also calculated correctly, but a different example: she multiplied the given number by seven and added three to the result. Růža's result was 84 more than Kamča's result.

What number was written on the board?

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