Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.2 - Operations with Real Numbers and Simplifying Algebraic Expressions - Exercise Set - Page 28: 132


Algebraic expression translation: $x - (8-x)$ Simplified form: $2x-8$

Work Step by Step

Let $x$ = the unknown number The difference between eight and the number: $8-x$ A number decreased by the difference between eight and the number: $x - (8-x)$ Simplifying gives: $=x-8-(-x) \\=x-8+x \\=2x-8$
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