Answer
Expression: -7x, Reciprocal: $-\frac{1}{7x}$
Work Step by Step
The opposite of a number is one in which their sum equals 0.
-7x + 7x = 0
An expression's reciprocal is a number in which their product equals 1.
-7x ($-\frac{1}{7x}$) = 1
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 1.7 - Properties of Real Numbers - Exercise Set - Page 72: 92
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