The linear systems in Problems 110 are in echelon form. Solve each by back substitution. 2x 1
Question:
The linear systems in Problems 1–10 are in echelon form. Solve each by back substitution.
2x1 + x2 + x3 + x4 = 6
3x2 - X3 - 2x4 = 2
3x3 + 4x4 = 9
X4 = 6
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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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