The identity property for a set states that there exists an element in the set, denoted by 0, such that for all members, x, of the set,
x + 0 = 0 + x = x.
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Identity of addition means the answer and then add
0 is the identity
To start with, the identity element of multiplication is 1, that of addition is 0.
+
Additive identity = 0Multiplicative identity = 1.