What is the value of $y$ in the arithmetic sequence $y + 6$, $12$, $y$?
Question:
What is the value of $y$ in the arithmetic sequence $y + 6$, $12$, $y$?
Answer:
Let's think step by step.

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What is the value of $y$ in the arithmetic sequence $y + 6$, $12$, $y$?
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