Algebra 1

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

Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Practice and Problem-Solving Exercises - Page 114: 50


m=5.7 b= 2m-a b=-1.9

Work Step by Step

Using the equation and plugging in the numbers, we get m=(9.3+2.1)/2. This gives m=5.7. Now for part b we start by multiplying both sides by 2, to get rid of the denominator. This gives 2m=a+b. Subtracting a, we get 2m-a=b. For part c, using the numbers they give us the get 2(3.5)-8.9=-1.9, which is b.
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