#### Answer

$(12+3)+x$

#### Work Step by Step

For any real numbers a, b, and c:
(i) Associative Property of Addition: $a+(b+c)=(a+b)+c$
Thus, using the associative property, an expression equivalent to the given expression is:
$(12+3)+x$

Published by
Pearson

ISBN 10:
0-13417-894-7

ISBN 13:
978-0-13417-894-3

$(12+3)+x$

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.