Question

Which choice is the same as the difference between a number and itself?

Answer 1

0.
1-1=0
2-2=0
3-3=0
23-23=0
123-123=0

Answer 2

`(n-n)=0`

Explanation:

Let

n-----> the number

The expression"the difference between a number and itself" is equivalent to the algebraic expression

`(n-n)=0`