Algebra: A Combined Approach (4th Edition)

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

Chapter 4 - Section 4.4 - Systems of Linear Equations and Problem Solving - Exercise Set: 7

Answer

x + y = 15 x-y = 7

Work Step by Step

Call the two numbers x and y: x + y = 15 x-y = 7
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