en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

the sum of three consecutive odd numbers is 15

Solution

the sum of three consecutive odd numbers is 15

Solution

The numbers : 3, 5, 7

Solution steps

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

Solve

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

x + 2 = 3 + 2 = 5

x + 4 = 3 + 4 = 7

The numbers : 3, 5, 7

Popular Examples

The sum of 7 times a number and 9 is 6 The sum of the largest and smallest of the numbers (−1)/4 , (−1)/3 , 0, 3/2 , 4/3 is the product of a number and 8 A computer with an original price of 850 is on sale at 15% off. What is the discount amount?The sum of eight times a number, and 9 , is equal to seven times the number.