Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - 3-5 Working With Sets - Got It? - Page 195: 2

Answer

In set-builder notation, the solutions are given by ${n | n \gt -3 }$.

Work Step by Step

Write: $9 - 4n \gt 21$ Subtract 9 from each side. $9 - 9 - 4n \gt 21 -9 $ Simplify: $ - 4n \gt 12$ Divide each side by 4: $-n \gt 3$ Then $n \gt -3$. In set-builder notation, the solutions are given by $\{n | n \gt -3 \}$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.