
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
During a campus beautification activity, 31 people were initially arranged to weed, and 18 people to plant trees. Later, an additional 20 people were sent to support them. As a result, the number of people weeding was twice the number of people planting trees. How many people were sent to support weeding and tree planting respectively? (Just set up the equation)

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