
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
Solve the equations (For question 2, verify the answer, for the rest, just solve the equations)
①X - 12 = 81
②5.1 + X = 10.5
③6X = 4.2
④X ÷ 0.4 = 12.5

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