
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
Xiao Ming's process of solving the fractional equation $\frac{1}{{x+1}}=\frac{{2x}}{{3x+3}}-1$ is as follows. Solve: eliminate the denominators to get $3=2x-\left(3x+3\right)$.① Eliminate the parentheses to get $3=2x-3x+3$.② Move terms and combine like terms to get $-x=6$.③ Normalize the coefficient to $1$ to get $x=-6$.④ In the above steps, the step where the error occurred was ____ (fill in the corresponding number).

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