Which expression is equivalent to A plus open paren c plus 7 close paren ?
Answer
A
open paren c plus 7 close paren minus A
B
A minus open paren c plus 7 close paren
C
7 A c
D
open paren A plus c close paren plus 7
Explanation
Use the associative property of addition to regroup the terms without changing their order: A + (c + 7) = (A + c) + 7. This matches choice D, “(A plus c) plus 7.”
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