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An administrative assistant at a local training center is auditing a shipment of course materials. They received 7 textbooks, and the packing slip notes that this quantity is three more than twice the number of notebooks (nn) shipped. After setting up the algebraic equation 7=2n+3{}7 = 2n + 3, the assistant solves it and finds that the center received ____ notebooks.

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Updated 2026-06-01

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