Answer
$m=4$
Work Step by Step
Adding 3 to each side gives $6m=24$.
We then divide both sides by 6 to get $m=4$
Plugging 4 back in gives,
$6*4-3=21$ or $24-3=21$ which is correct.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 1, Equations and Inequalities - 1.3 Solve Linear Equations - 1.3 Exercises - Skill Practice - Page 21: 11
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