Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.7 Solving Equations with Several Steps - 9.7 Exercises: 22

Answer

$-4r+28$

Work Step by Step

The distributive property holds that $a(b+c)=ab+ac$. Therefore, $-4(r-7)=(-4\times r)+(-4\times-7)=(-4r)+(28)=-4r+28$.
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