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人気のある Word Problems >

The sum of three consecutive integers is-27 . Find the value of the middle of the three.

解

T h e s u m o f t h ree co n sec u t i v e in t e g ers i s - 27 . F in d t h e v a l u e o f t h e mi dd l e o f t h e t h ree .

解

The number : - 9

解答ステップ

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 1

Consecutive number 2 : x + 2

A.T.Q.:

x + x + 1 + x + 2 = - 27

解く

x + x + 1 + x + 2 = - 27 : x = - 10

x + 1 = - 10 + 1 = - 9

x + 2 = - 10 + 2 = - 8

The number : - 9

人気の例

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