Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 3 - Solving Inequalities - Get Ready: 17

Answer

m=5

Work Step by Step

We need to get the m alone, so we cancel out the addition by subtracting 4 on both sides. This leaves us with the equation 4.2m=21. We cancel out multiplication by using division, so we divide both sides of the equation by 4.2 to get that m=5. We plug 5 in for m and confirm that our answer is, indeed, correct.
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