Answer
$x=-y-z+1$
Work Step by Step
$x+y+z=1$
$(x+y+z)-(y+z)=1-(y+z)$
$x=-y-z+1$
Elementary Linear Algebra 7th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
1-13311-087-8
ISBN 13:
978-1-13311-087-3
Chapter 1 - Systems of Linear Equations - 1.1 Introduction to Systems of Linear Equations - 1.1 Exercises - Page 10: 9
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