Answer
$-5x-5z=-16$
Work Step by Step
$2x-3y+2z=5$
$2x-3y+2z=5$
$-3*(2x-3y+2z=5)$
$-6x+9y-6z=-15$
$-6x+9y-6z+(x-9y+z)=-15-1$
$-6x+9y-6z+x-9y+z=-16$
$-5x-5z=-16$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 9 - Section 9.1 - Solving Systems of Linear Equations in Three Variables and Problem Solving - Exercise Set - Page 640: 46
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