Algebra: A Combined Approach (4th Edition)

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

Appendix D - Exercise Set - Page 994: 34



Work Step by Step

You will need to create two seperate equations. 5z-1=7-z 5z+z-1=7-z+z 6z-1=7 6z-1+1=7+1 6z=8 6z/6=8/6 z=4/3 and 5z-1=-7+z 5z-z-1=-7+z-z 4z-1=-7 4z-1+1=-7+1 4z=-6 4z/4=-6/4 z=-3/2 The solution set is {4/3, -3/2}.
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