Answer
$8-x$
Work Step by Step
"The difference of" means that any latter terms will be subtracted from the first term. Since the instructions say to use $x$ to represent an unknown number, the difference of 8 and a number would be $8-x$.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 2 - Section 2.1 - Linear Equations in One Variable - Exercise Set - Page 56: 70
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