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In Exercises 39-40, write the system of linear equations represented by the augmented matrix. Use w, x, y, and z for the variables. Once the system is written, use back-substitution to find its solution set, {(w, x, y, z)}. 39. 1 -1 1 1. 3 1 1 -2 -1 1 6| 17 1 3 40. 1 2 -1 2 1 -2 -3 1 -1 0 1 1 0 0 -2 0 0 1 3

In Exercises 39-40, write the system of linear equations represented by the augmented matrix. Use w, x, y, and z for the variables. Once the system is written, use back-substitution to find its solution set, {(w, x, y, z)}. 39. 1 -1 1 1. 3 1 1 -2 -1 1 6| 17 1 3 40. 1 2 -1 2 1 -2 -3 1 -1 0 1 1 0 0 -2 0 0 1 3

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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In Exercises 39-40, write the system of linear equations represented by the augmented matrix. Use w, x, y, and z for the variables. Once the system is written, use back-substitution to find its solution set, {(w, x, y, z)}. 39. 1 -1 1 1. 3 1 1 -2 -1 1 6| 17 1 3 40. 1 2 -1 2 1 -2 -3 1 -1 0 1 1 0 0 -2 0 0 1 3
Transcribed Image Text:In Exercises 39-40, write the system of linear equations represented by the augmented matrix. Use w, x, y, and z for the variables. Once the system is written, use back-substitution to find its solution set, {(w, x, y, z)}. 39. 1 -1 1 1. 3 1 1 -2 -1 1 6| 17 1 3 40. 1 2 -1 2 1 -2 -3 1 -1 0 1 1 0 0 -2 0 0 1 3
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