Answer
$-5y+2z = 2$
Work Step by Step
$x+2y-z=0$ Equation $(1)$
$3x+y-z =2$ Equation $(2)$
Multiplying Equation $(1)$ by $-3$ and adding Equation $(2)$
$-3x+3x-6y+y+3z-z = 0+2$
$-5y+2z = 2$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 4 - Section 4.3 - Systems of Linear Equations and Problem Solving - Exercise Set - Page 233: 49
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