In Exercises 912, determine whether each ordered triple is a solution of the system of
Chapter 8, Problem 10(choose chapter or problem)
Checking Solutions In Exercises 9–12, determine whether each ordered triple is a solution of the system of equations.
\(\left\{\begin{array}{lr} 3 x+4 y-z= & 17 \\ 5 x-y+2 z= & -2 \\ 2 x-3 y+7 z= & -21 \end{array}\right. \)
(a) (1, 5, 6)
(b) (−2, −4, 2)
(c) (1, 3, −2)
(d) (0, 7, 0)
Text Transcription:
{3x+4y-z=17 _5x-y+2z=-2 _2x-3y+7z=-21
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