
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
Person A and person B both depart from point $A$ at the same time and arrive at point $B$, which is 30 kilometers away from point $A$. Person A travels 3 kilometers less per hour than person B. As a result, person B arrives 40 minutes earlier than person A. If person B travels at a speed of $x$ kilometers per hour, formulate the equation that represents this situation.

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