Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 1 - Section 1.4 - Key Math Skills for Chemistry - Questions and Problems - Page 17: 1.21a

Answer

a = 9

Work Step by Step

Move the 4 to the right side by subtracting, then divide by 4.
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