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: 43

Answer

$3x+4$

Work Step by Step

To remove parentheses preceded by a plus sign, do not change the sign of any of the terms within the parentheses. $4x+(4-x)=4x+4-x$ To combine like terms, add the coefficients. $4x+4-x=(4+(-1))x+4=3x+4$
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