Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.5 - Formulas and Problem Solving - Practice: 8


b = 2A - a

Work Step by Step

To solve for b, isolate b on one side of the equation: A = $\frac{a + b}{2}$ Multiply both sides by 2: 2A = a + b Subtract a from both sides: 2A - a = b
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