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: 10


Add 7 to each side.

Work Step by Step

To solve an inequality, you need to isolate the variable on one side of the inequality. $1\lt d-7\longrightarrow$ add 7 to each side $1+7\lt d-7+7\longrightarrow$ add $8\lt d$
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