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: 18

Answer

y=-17

Work Step by Step

Add 4 to both sides to isolate the variable. -21=y-4 -21+4=y -17=y y=-17 Check the answer. -21=(-17)-4 -21=-21
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