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how to write an algebra equation?

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The sum of three consecutive numbers is 78. What is the smallest of the three numbers?

Sep 11th, 2014

n + (n + 2) + (n + 4) = 78

n + n + 2 + n + 4 = 78

3n + 6 = 78

3n = 78 - 6

3n = 72

n = 72/3

n = 24


Sep 11th, 2014

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Sep 11th, 2014
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