Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - 3-2 Solving Inequalities Using Addition or Subtraction - Practice and Problem-Solving Exercises: 56

Answer

$z \lt5.3$

Work Step by Step

We start with: $z-1.4\lt3.9$ In order to undo subtraction, we use addition, so we add 1.4 to both sides to isolate the variable z, giving us: $z\lt5.3$
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