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Reflexive Property of Equality

Rule

Reflexive Property of Equality

For any real number it is true that the number is equal to itself.

a=aa=a

This can be used to solve equations. For example, consider the equation below. x+3=8\begin{gathered} x + 3 = 8 \end{gathered} The sum on the left-hand side can be interpreted as a number, meaning it has to be equal to 8.8. This implies that xx must be equal to 5.5.