The linear systems in Problems 110 are in echelon form. Solve each by back substitution. x 1
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The linear systems in Problems 1–10 are in echelon form. Solve each by back substitution.
x1 + 2x2 + 4x3 - 5x4 = 17
x2 - 2x3 + 7x4 = 7
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Related Book For
Differential Equations And Linear Algebra
ISBN: 9780134497181
4th Edition
Authors: C. Edwards, David Penney, David Calvis
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