
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 average speed of the first bus is x km/h and the average speed of the second bus is 1.2x km/h. The first bus departed 3 minutes before the second bus, and both buses arrived at the same time. The distance from the school to the exhibition hall is 12 km. Write the equation based on the time and distance traveled by both buses.

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