the sum of three consecutive even integers is 84. What is the smallest of these integers?

解

t h e s u m o f t h ree co n sec u t i v e e v e n in t e g ers i s 84. Wha t i s t h e s ma ll es t o f t h ese in t e g ers ?

The smallest number : 26

解答ステップ

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 = 84

解く

x + x + 2 + x + 4 = 84 : x = 26

x + 2 = 26 + 2 = 28

x + 4 = 26 + 4 = 30

Select the smallest solution:

26

The smallest number : 26