Respuesta :

arinaitwedaniella201

Answer:

Step-by-step explanation:

Let the middle number be x

. Then the 3 numbers will be, x-1, x and x+1

. Therefore x-1+x+x+1=51.

Therefore: 16+17+18= 51.

Sheila35

Answer:

16,17,18

Step-by-step explanation:

a+a +1+a +2 =51

3a+3=51

3a=51-3

3a =48

a=48 :3 =16(the first number

16+1 =17 (the second number

16+2=18 (the third number