Algebra: A Combined Approach (4th Edition)

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 - Practice - Page 634: 4

Answer

${(x, y, z) | -2x+6y-8z=-4}$

Work Step by Step

$x-3y+4x=2$ $-2x+6y-8z=-4$ $1/2*x-3/2*y+2z=1$ $x-3y+4x=2$ $-2*(x-3y+4x)=-2*2$ $-2x+6y-8z=-4$ $1/2*x-3/2*y+2z=1$ $-4*(1/2*x-3/2*y+2z)=-4*1$ $-2x+6y-8z=-4$ $-2x+6y-8z=-4$ $-2x+6y-8z=-4$ $-2x+6y-8z=-4$
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