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.
$x-(-x-y)+2y=x+x+y+2y=(1+1)x+(1+2)y=2x+3y$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
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
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