1. Solve the following system of linear equations xi + 2x2 + 3x3 + 4x4 + 5xs = 5 2x1 - 3x2 + 4.x3 - 5x + x5 = 10 %3D X1 + x2 – X3 – X4 + xz = 8 5x1 – 4x2 – 3x3 +2x4 + x5 = 9 3x1 + 4.x2 - 3x3 - 4x4+6x5 = 7 4 using (a) Direct algebraic manipulation, e.g., inverse multiplication. (b) Gaussian Elimination.

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