Solve the following system using back-substitution: x- 2y - z = 1 Equation 1 y + 2z = 5 Equation 2 z = 3 Equation 3

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.1: Systems Of Linear Equations
Problem 31E: Solve each system by substitution, if possible. x+3y=12x+6y=3
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Solve the following system using back-substitution:
x- 2y - z = 1
Equation 1
y + 2z = 5
Equation 2
z = 3
Equation 3
Transcribed Image Text:Solve the following system using back-substitution: x- 2y - z = 1 Equation 1 y + 2z = 5 Equation 2 z = 3 Equation 3
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