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Lesson
Exercises
Recommended
Tests
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Image Credits
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Rule
Reflexive Property of Equality
For any
real number
, the number is equal to itself.
a
=
a
This property is an
axiom
, so it does not need a
proof
. This property is used to solve
equations
. For example, consider the equation below.
x
+
3
=
8
The sum on the left-hand side can be interpreted as a number, so this sum has to equal
8
.
This implies that
x
must be equal to
5
.
error
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