Algebra 1: Common Core (15th Edition)

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

Chapter 1 - Foundations for Algebra - Chapter Review - Page 72: 89

Answer

This is not a solution to the equation.

Work Step by Step

We follow the instructions to plug in -10 for b. $3(-10)-9=21 \\\\ -30-9=21 \\\\ -39\ne21$ -39 does not equal 21, so this is not a solution to the equation.
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