I have to write if it is associative property, closure property, commutative property, additive inverse and so on in the following exercise.
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Recall that the commutative property states that:
[tex]a*b=b*a.[/tex]Therefore, using the commutative property we get that:
[tex]2x(3+y_)=(3+y)2x.[/tex]Answer: Commutative property.