Algebra: A Combined Approach (4th Edition)

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

Chapter 4 - Section 4.3 - Solving Systems of Linear Equations by Addition - Exercise Set - Page 307: 12

Answer

x = 2 y = 1

Work Step by Step

x - y = 1 first equation -x + 2y = 0 second equation _________________ y = 1 add the equations to eleminate x let x = 1 in first equation x - y = 1 x - 1 = 1 x = 2 subtract -1 to both sides
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