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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