Solve the system x1 + 2x2 + x3 = 3 3x1 − x2 − 3x3 = −1 2x1 + 3x2 + x3 = 4

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
Problem 4MRE
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Solve the system
x1 + 2x2 + x3 = 3
3x1 − x2 − 3x3 = −1
2x1 + 3x2 + x3 = 4

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