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posted by Hayleigh on Tuesday, November 29, 2011 at 7:52pm.

A farmer has 20 sheep and pigs. He has 6 fewer sheep than pigs. How many pigs does he have?

p + p - 6 = 20 2p - 6 = 20 2p = 20 + 6 2p = 26 p = 13

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