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04-11-2016
Mathematics

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

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04-11-2016

Let n = the unknown number

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

*Simplify this by combining like terms*

n + n + 2 + n + 4 = 78

3n + 6 = 78
-6 -6
---------------
3n = 72
--- ----
3 3

n= 24

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