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 2.1 - The Addition Property of Equality - Exercise Set - Page 120: 19

Answer

z=4

Work Step by Step

Subtract 7 from both sides to isolate the variable. 7+z=11 z=11-7 z=4 Check the answer. 7+(4)=11 11=11
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