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 - Lesson Check - Page 174: 4



Work Step by Step

$4+c\gt7\longrightarrow$ subtract 4 from each side $4+c-4\gt7-4\longrightarrow$ subtract $c\gt3$ Check the inequality. $4+4\overset?\gt7$ $8\gt7\checkmark$ The endpoint of the graph is an open circle at 3 since the inequality does not include 3.
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