#### Answer

z = $\frac{9}{10}$

#### Work Step by Step

z - 5z = 7z - 9 - z
-4z = 6z - 9
-10z = -9
z = $\frac{9}{10}$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

z = $\frac{9}{10}$

z - 5z = 7z - 9 - z
-4z = 6z - 9
-10z = -9
z = $\frac{9}{10}$

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