Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 5 - Section 5.2 - Simplifying Algebraic Expressions - Exercise - Page 218: 72



Work Step by Step

We simplify by removing the parentheses and combining the like terms as follows: $$ -(x - 3) - 3(4+ x)=-x+3-12-3x=-4x-9 .$$
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