Introductory Algebra for College Students (7th Edition)

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

Chapter 2 - Section 2.2 - The Multiplication Property of Equality - Exercise Set - Page 130: 43



Work Step by Step

$3z=-2z-15$ First add 2z to both sides. $3z+2z=-15$ $5z=-15$ Then divide both sides by 5. 5z$\div$5=-15$\div$5 $z=-3$ Check the answer. 3(-3)=-2(-3)-15 -9=6-15 -9=-9
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