Algebra: A Combined Approach (4th Edition)

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

Chapter 3 - Test - Page 279: 22



Work Step by Step

Write down all the given information: P=42; P=2x+3y; y=8; x=? Then form an equation: $42=2x+3\times8$ And lastly calculate the missing value: $42=2x+24<=>18=2x<=>x=9$
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