Answer
$\frac{2}{3}$
Work Step by Step
$\frac{|-x-y+z|}{2z}=\frac{|-(-2)-(-1)+9|}{2*9}=\frac{|+2+1+9|}{18}=\frac{12}{18}=\frac{2}{3}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 1 - Section 1.5 - Integrated Review - Operations on Real Numbers - Page 51: 46
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