Question

the sum of three cosecutive odd number is 21 find the number​

Answer 1

$\huge\underline{\mathbb\red{❥︎A}\green{N}\mathbb\blue{S}\purple{W}\mathbb\orange{E}\pink{R}}\:$

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Let one number be x.

Then, the other number will be x+2.

The third number = x+2+2=x+4

It is given that their sum is 21.

So, x+(x+2)+(x+4)=21

3x+6=21

3x=15

x=5

and x+2=7

x+4=9.

therefore numbers are 5,7 and 9

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$\textit{Hope this helps you}$

Answer 2

Answer:

5,7 and 9

Step-by-step explanation:

Let the three consecutive odd number be x,x + 2,x + 4.

Given that the sum of 3 consecutive odd numbers is 21.

x + x + 2 + x + 4 = 21

3x + 6 = 21

3x = 21 - 6

3x = 15

x = 15/3

x = 5.

x + 2 = 5 + 2

= 7

x + 4 = 5 + 4

= 9

HOPE IT HELPS!!!