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Given the system of linear equations, 7x1 + x2 + 2x3 = 74 3x1 2x2 + 8x3- 57 2x1 + 5x2 + 3x3- 59 Solve

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Given the system of linear equations, 7x1 + x2 + 2x3 = 74 3x1 2x2 + 8x3- 57 2x1 + 5x2 + 3x3- 59 Solve for xi, x2, and x3 using, a) substitution technique (by hand) b) Gauss Elimination (by hand) c) the inverse of the A matrix (by hand and MATLAB) d) " command (by MATLAB)

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