
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
There is a polynomial simplification question: Given $A=5x^2+4x-1$, $B=-x^2-3x+3$, $C=8-7x-6x^2$.
Calculate the value of $A-B+C$. After solving the problem, Ming found that the value was independent of $x$. Do you think Ming's approach is correct? Please explain your reasoning.

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