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1. Solve the linear system using Gauss'method: - 3x, + x2 + x3 + x4 = 1 x - 3x + x + x =

1. Solve the linear system using Gauss'method: - 3x, + x2 + x3 + x4 = 1 x - 3x + x + x = 1 x, + x2 3x3 + x4 = 1 1 x + x2 + x2 3x4 = 1

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