Respuesta :

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

Answer:

[tex](n-n)=0[/tex]

Step-by-step explanation:

Let

n-----> the number

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

[tex](n-n)=0[/tex]