Which property of real numbers is shown? 3 plus open paren negative 5 plus 6 close paren is equal to open paren 3 plus negative 5 close paren plus 6

The numbers stay in the same order: 3, −5, and 6. Only the grouping changes from 3 + (−5 + 6) to (3 + −5) + 6. Changing the grouping of addends is the associative property of addition.

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