Respuesta :

Answer:

Let first no. be x

Therefore,

2nd no. is x+1

Third no. is x+2

SUM OF NO.'s=x+x+1+x+2

S=3x+3

S=3(x+1)

Sirious

Step-by-step explanation:

Let the first number be 2k-1, where k is an postive integer.

Then the sum S is given by

[tex]S=(2k-1)+(2k+1)+(2k+3)=6k+3[/tex]

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