View answer: In Exercises 21 42, solve the system of linear equations and check any
Chapter 8, Problem 34(choose chapter or problem)
Solving a System of Linear Equations In Exercises 21–42, solve the system of linear equations and check any solution algebraically.
\(\left\{\begin{array}{rr} x+4 z= & 13 \\ 4 x-2 y+z= & 7 \\ 2 x-2 y-7 z= & -19 \end{array}\right. \)
Text Transcription:
{x+4z=13 _4x-2y+z=7 _2x-2y-7z=-19
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