Which property justifies this statement?

x-4=x-4x-4=x-4

Reflexive Property of Equality

Substitution Property of Equality

Transitive Property of Equality

Symmetric Property of Equality

I believe the correct answer from the choices listed above is the first option. It would be the Reflexive Property of Equality that would justify the expression x-4=x-4. The Reflexive Property states that for every real number x, x = x.