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: 50

Answer

$x+11$

Work Step by Step

To remove parentheses preceded by a minus sign, change the sign of all the terms within the parentheses. To combine like terms, add the coefficients. $(2x+4)-(x-7)=2x+4-x+7=(2+(-1))x+(4+7)=x+11$
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