Explain how to write an equivalent expression using fhe associative property. 2+ (11 + y)

The associative property of addition is a property which allows terms in an addition expression to be "switched around." For example, the addition property says that the following two expressions are equal:

Applying this to this problem, we can move the parentheses to cover the 2 + 11 to make a new expression, as shown below:

A new expression could be (2 + 11) + y.