Question: solve the system by Gaussian elimination. 5. x1 + x2 + 2x3 = 8 -x1-2x2 + 3x3 = 1 7. 3x1-7x2 + 4x3 =

solve the system by Gaussian elimination. 5. x1 + x2 + 2x3

= 8 -x1-2x2 + 3x3 = 1 7. 3x1-7x2 + 4x3 =

solve the system by Gaussian elimination. 5. x1 + x2 + 2x3 = 8 -x1-2x2 + 3x3 = 1 7. 3x1-7x2 + 4x3 = 10 xy+2z- w = -1 2x + y 2z - 2w = -2 -x+2y4z + w = 1 3x R - 3w = -3

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