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If, the question relates to
6 + 7 = 7 + 6
it is the Abelian or commutative property of addition.
If the question is about something else please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc. And using ^ to indicate powers (eg x-squared = x^2).
Addition identity.
commutative property of addition
I think it is commutative property.
identity property of addition
The commutative property of addition
The Commutative Property of Addition
Commutative property of addition.
the addition property for 6 plus 7 equals 7 plus 6 is the commutative property. This property states that - when two numbers are added, the sum is the same regardless of the order of the addends.
This is called the Commutative property of addition.
The property you described, where x + y = y + x, is called commutativity. In the case of addition, it is called the commutative property of addition.
The concept of being able to swap numbers in an addition sum is called the commutative property of addition.
commutative property