Based on the commutative property of addition, 2x + 21 = 21 + 2x.
What is the Commutative Property of Addition?
The commutative property of addition states that when we change the order of arrangement of the addends, the value of the sum remains the same.
For example, 3 + 4 = 4 + 3.
Also, given the statement 2x + 21, we can state that:
2x + 21 = 21 + 2x
Therefore, based on the commutative property of addition, 2x + 21 = 21 + 2x.
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