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: 131

Answer

Algebraic expression translation: $x - (x+4)$ Simplified form: $-4$

Work Step by Step

Let $x$ = the unknown number The sum of the number and four: $x+4$ A number decreased by the sum of the number and four: $x - (x+4)$ Simplifying gives: $=x-x-4 \\=0x-4 \\=-4$
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