Algebra 1

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

Chapter 1 - Foundations for Algebra - 1-8 An Introduction to Equations - Practice and Problem-Solving Exercises - Page 57: 54

Answer

m=2

Work Step by Step

Use mental math. If $4m+1=9$, then $4m=8$. We know that $4\times2=8$, so the solution is 2.
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