8. Use the modified algorithm from Exercise 7 to solve the following linear systems. a
Chapter 6, Problem 8(choose chapter or problem)
8. Use the modified algorithm from Exercise 7 to solve the following linear systems. a. 4x1 x2+ x3 = 1, x1 + 3x2 = 4, x1 +2x3 = 5. b. 4x1 + 2x2+2x3 = 0, 2x1 + 6x2+2x3 = 1, 2x1 + 2x2+5x3 = 0. c. 4x1 + 2x3 + x4 = 2, 3x2 x3 + x4 = 0, 2x1 x2 + 6x3 + 3x4 = 7, x1 + x2 + 3x3 + 8x4 = 2. d. 4x1+ x2 + x3+ x4 = 2, x1+3x2 x4 = 2, x1 + 2x3+ x4 = 1, x1 x2 + x3+4x4 = 1.
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