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Solve the system 5x1 -6x2 +3x3 +2x4 = 1 -x1 +x2 +3x3 +3x3 +2x4= 5 4x1 -5x2 +63 +4x4 = 6 -3x1 +3x2 +9x3

Solve the system 5x1 -6x2 +3x3 +2x4 = 1 -x1 +x2 +3x3 +3x3 +2x4= 5 4x1 -5x2 +63 +4x4 = 6 -3x1 +3x2 +9x3 +6x4= = 15 1 8 8 22 = 8 8 4 21 21 +s 18 +t 1 0

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