Question

Let n be the middle number of three consecutive integers. Write an expression for the sum of these integers.?

Answer 1

Please look below.

Explanation:

Consecutive numbers are numbers in order, so the three consecutive numbers are `n-1`, `n` and `n+1`.

The sum of these three consecutive numbers are:

`(n - 1) + (n) + (n+1)`

`= 3n`