Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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Question
X1 X2 X3 11 Solve the system +S X1 +x2 X2 +x3 X3 +x4 +x4 -5 -3 = -5 = -7 =
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Transcribed Image Text:X1 X2 X3 11 Solve the system +S X1 +x2 X2 +x3 X3 +x4 +x4 -5 -3 = -5 = -7 =
Expert Solution
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Step 1: Augmented matrix

Let's form the augmented matrix for the given system of equations.

open square brackets table row 1 1 0 0 cell negative 5 end cell row 0 1 1 0 cell negative 3 end cell row 0 0 1 1 cell negative 5 end cell row 1 0 0 1 cell negative 7 end cell end table close square brackets

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