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: 17



Work Step by Step

$t-4\geq -7$ : add 4 to both sides $t-4+4\geq -7+4$ : simplify $t\geq -3$ Verify that -3 is a solution at the endpoint. $-3-4\overset?= -7$ $-7=-7\checkmark$ Verify that a number greater than -3 is a solution. $0-4\overset?\geq-7$ $-4\geq-7\checkmark$
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