Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 6 - Cumulative Review - Page 265: 12



Work Step by Step

We simplify by distributing $-2$ and then combine similar terms as follows: $$(2x - 5y) + (3y - 4x) -2(3x - 5y)=-2x-2y-6x+10y\\ =-8x+8y.$$
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