Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-1 Variables and Expressions - Practice and Problem-Solving Exercises - Page 8: 28

Answer

(15+x)+7

Work Step by Step

The problem lists the sum of 15 plus x first, so we first add 15 and x and put this part of the expression in parenthesis. The phrase then states that it is the sum of 15+x "plus 7," so we add 7 to the expression in parenthesis to get the overall algebraic expression.
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