If 5, 6, and x have the same average as 2, 7, and 9, then what does

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If 5, 6, and x have the same average as 2, 7, and 9, then what does x equal?

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Finite Mathematics And Its Applications

ISBN: 9780137616619

13th Edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel , Jill Simmons

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