
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
Tyrone initially had 150 marbles and Eric initially had 30 marbles. After Tyrone gave some marbles to Eric, Tyrone has three times as many marbles as Eric initially had. Determine the number of marbles Tyrone gave to Eric.

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