Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 3 - Solving Inequalities - 3-2 Solving Inequalities Using Addition or Subtraction - Practice and Problem-Solving Exercises - Page 174: 19


$12\lt p$

Work Step by Step

$9\lt p-3$ : add 3 to both sides $9+3\lt p-3+3$ : simplify $12\lt p$ Verify that 12 is not a solution at the endpoint. $9\overset?\lt 12-3$ $9\ /\!\!\!\!\!\lt 9\checkmark$ Verify that a number greater than 12 is a solution. $9\overset?\lt 14-3$ $9\lt 11\checkmark$
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