For $y=\frac{x-4}{5x-10}$ and $x\neq 2$, what is the value of $y$ that is not attainable? Express your answer as a common fraction.
Question:
For $y=\frac{x-4}{5x-10}$ and $x\neq 2$, what is the value of $y$ that is not attainable? Express your answer as a common fraction.
Answer:
Let's think step by step.

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\frac15
For $y=\frac{x-4}{5x-10}$ and $x\neq 2$, what is the value of $y$ that is not attainable? Express your answer as a common fraction.
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