The sum of 3 consecutive odd numbers is 69

Question

The sum of 3 consecutive odd numbers is 69

Answer 1

using algebra...

x+(x+2)+(x+4)=69

3x+6=69

3x=63

x=21

x+2=23

x+4=25

21, 23, and 25 are the numbers

using arithmetic...

69/3=23

23-2=21 and 23+2=25

21, 23, and 25 again