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 - Page 174: 22


z $\leq$8

Work Step by Step

You have z-12$\leq$-4 and you have to solve for x: z-12$\leq$-4 -add 12 to both sides- z$\leq$8 Check that 8 is a solution: 8-12=-4 -4=-4 When graphing, you have a closed circle because 8 is part of the solutions.
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