
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
In the equation $(a^2-4)x^2 + (2-3a)x + (a+1)y + 3a = 0$, if this equation is a linear equation with two variables, then the value of $a$ is ______.

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