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Review: Value of x
Explanation
This question asks for a "value" of x, and "value" means "number" on GMAT questions. So Statement (1)
is sufficient: it gives us the value of x.
Meanwhile, Statement (2) is coy: it tells us that the value of x is one of two possible values, but we
don't know which one. So statement (2) "ALONE," as answer choice (B) says, is
not the answer.
The correct answer is (A).
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