Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 4 - Polynomials - 4.7 Polynomials in Several Variables - 4.7 Exercise Set: 43

Answer

$-8x+8y$

Work Step by Step

The given sentence translates to the expression, $ [(4x+5y)+(-5x+6y)]-(7x+3y) .$ Removing the grouping symbols and then combining like terms, then the expression above simplifies to \begin{array}{l}\require{cancel} 4x+5y-5x+6y-7x-3y \\\\= (4x-5x-7x)+(5y+6y-3y) \\\\= -8x+8y .\end{array}
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