Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Section 4.1 - Solving Systems of Linear Equations in Two Variables - Exercise Set - Page 213: 70

Answer

$3x-7z=3$

Work Step by Step

We have $$x+4y-5z=20$$ $$2x-4y-2z=-17$$ Adding the equations $$3x-7z=3$$
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