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: 46

Answer

$2x+3y$

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. $x-(-x-y)+2y=x+x+y+2y=(1+1)x+(1+2)y=2x+3y$
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