Basic College Mathematics (9th Edition)

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

Chapter 9 - Basic Algebra - Review Exercises - Page 702: 128

Answer

$z=3$

Work Step by Step

We are given the equation $2z-7z=-15$. In order to solve, we must first combine like terms on the left side. $2z-7z=(2-7)z=-5z=-15$ Divide both sides by -5. $\frac{-5z}{-5}=\frac{-15}{-5}$ Therefore, $z=3$.
Update this answer!

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

Update this answer

After 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.