Answer
$z=5$
Work Step by Step
$12=z+7$
Subtract 7 from both sides.
$12-7=z+7-7$
$5=z+0$
$z=5$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.6 Solving Equations - 9.6 Exercises - Page 668: 20
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
