The probability of guessing the correct answer of a certain test question is $\frac{x}{12}$. If the probability of not guessing the correct answer is $\frac{5}{6}$, then find the value of $x$.

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Step 1: $\frac{x}{12} + \frac{5}{6} = 1$
Step 2: $\frac{x}{12} = 1 - \frac{5}{6} = \frac{1}{6} \Rightarrow x = 2$

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