Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 6 - Cumulative Review - Page 407: 23

Answer

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Work Step by Step

$2x-4y+8z = 2$ Equation $(1)$ $-x-3y+z = 11$ Equation $(2)$ $x-2y+4z = 0$ Equation $(3)$ Multiply Equation $(3) $ by $-2$ and add with Equation $(1)$ $-2(x-2y+4z)+2x-4y+8z = -2(0)+2$ $-2x+4y-8z+2x-4y+8z = 0+2$ $0= 2$ This is false statement. So, this system of equations is inconsistent and has no solution. Solution set is empty set.
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