Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 3 Linear Systems and Matrices - 3.4 Solve Systems of Linear Equations in Three Variables - 3.4 Exercises - Skill Practice - Page 182: 6


The given ordered triple is not a solution of the system.

Work Step by Step

$(-5,1,0)$ $3x+4y-2z=-11$ $3(-5)+4(1)-2(0)=-11$ $-15+4-0=-11$ $-11=-11$ $2x+y-z=11$ $2(-5)+1(1)-1(0)=11$ $-10+1-0=11$ $-9\ne11$ Since $-9\ne11$ we don't even have to check the last equation.
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