Let x, y, and z represent real numbers
Reflexive property: x = x
Symmetric property: If x = y, then y = x
transitive property: If x = y and y = z, then x = z
Addition property: If x = y, then x + z = y + z
Multiplication property: If x = y, then x × z = y × z
Division property: If x = y, then x ÷ z = y ÷
Substitution property: If x = y, then y can be substituted for x in any expression
