If xy > 0, does (x - 1)(y - 1) = 1? (1) x + y = xy (2) x = y

Free Practice Question

DS · Data Sufficiency

555-605

Algebra

xy > 0

, does

(x - 1)(y - 1) = 1

?

(1)

x + y = xy

(2)

x = y

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555-605

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