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Popolare >

the sum of three consecutive odd numbers is 15

Soluzione

the sum of three consecutive odd numbers is 15

Soluzione

The numbers : 3, 5, 7

Fasi della soluzione

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 = 15

Risolvi

x + x + 2 + x + 4 = 15 : x = 3

x + 2 = 3 + 2 = 5

x + 4 = 3 + 4 = 7

The numbers : 3, 5, 7

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