Cramer Method

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2x1 + x2 + x3 = 8
4x1 + x2 = 11
-2x1 + 2x2 + x3 = 3
2x1 + x2 - x3 = 1
5x1 + 2x2 + 2x3 = -4
3x1 + x2 + x3 = 5
4x1 + x2 - x3 = -2
5x1 + x2 + 2x3 = 4
6x1 + x2 + x3 = 6
2x1 - 6x2 - x3 = -38
-3x1 - x2 + 7x3 = -34
-8x1 + x2 - 2x3 = -20
3x1 - 2x2 + x3 = -10
2x1 + 6x2 - 4x3 = 44
-1x1 - 2x2 + 5x3 = -26
1x1 + x2 - x3 = -3
6x1 + 2x2 + 2x3 = 2
-3x1 + 4x2 + x3 = 1
1x1 + x2 - x3 = 2
5x1 + 2x2 + 2x3 = 9
-3x1 + 5x2 - x3 = 1