If $x - y = 6$ and $x + y = 12$, what is the value of $x$?
Question:
If $x - y = 6$ and $x + y = 12$, what is the value of $x$?
Answer:
Let's think step by step.

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If $x - y = 6$ and $x + y = 12$, what is the value of $x$?
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