Basic College Mathematics (9th Edition)

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

Chapter 9 - Basic Algebra - 9.6 Solving Equations - 9.6 Exercises: 39

Answer

-10, 5

Work Step by Step

a. We are given the equation $-10x=40$. We would divide both sides by -10, because this would simplify the left side to $\frac{-10x}{-10}=x$. Doing so would allow us to isolate the variable on one side. b. We are given the equation $-25=5z$. We would divide both sides by z, because this would simplify the right side to $\frac{5z}{5}=z$. Doing so would allow us to isolate the variable on one side.
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