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Rule

Symmetric Property of Equality

For all real numbers, the order of an equality does not matter. Let and be real numbers.

If then

This property can be used together with other Properties of Equality to solve equations or to isolate a variable and express it in terms of another variable. In the example below, the Symmetric Property of Equality is used to express in terms of
symmetric property of equality
This property is an axiom, so it does not need a proof to be accepted as true. The Symmetric Property of Equality also holds true if and are complex numbers.