Answer
${(x, y, z) | x-2y+z=-5}$
Work Step by Step
$x-2y+z=-5$
$-3x+6y-3z=15$
$2x-4y+2z=-10$
$-3x+6y-3z=15$
$(-3x+6y-3z)/-3=15/-3$
$x-2y+z=-5$
$2x-4y+2z=-10$
$(2x-4y+2z)/2=-10/2$
$x-2y+z=-5$
$x-2y+z=-5$
$x-2y+z=-5$
$x-2y+z=-5$
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 637: 7
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