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Three consecutive even integers add up to 54. Which integers are they?

解答

Three consecutive even integers add up to 54. Which integers are they?

解答

The numbers : 16, 18, 20

求解步骤

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

A.T.Q.:

x + x + 2 + x + 4 = 54

解

x + x + 2 + x + 4 = 54 : x = 16

x + 2 = 16 + 2 = 18

x + 4 = 16 + 4 = 20

The numbers : 16, 18, 20

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