Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.3 - The Real Numbers - Exercise Set - Page 43: 124

Answer

Both expressions have the same value, 27. $3(x+5)=3x+15$

Work Step by Step

Evaluating $3(x+5)$ when $x=4:$ $3(4+5)=3(9)=27$ Evaluating $3x+15$ when $x=4:$ $3(4)+15=12+15=27.$ What we observe: Both expressions have the same value, 27. $3(x+5)=3x+15$
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