Answer
$7a - 4b - 3x + 4y$
Work Step by Step
We simplify by removing the parentheses and then add the like terms as follows:
$$
(7a - 4b) - (3x - 4y)=7a - 4b - 3x + 4y\\
=7a - 4b - 3x + 4y
.$$
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 5.3 - Addition and Subtraction of Polynomials - Exercise - Page 221: 43
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