x = 4 - 2x + 1 = 9, x = 3 - 2x + 5 = 11, x = 2 - 3x + 8 = 14, x = 5 - 3x + 5 = 20, x = 1 - 4x + 9 = 13, x = 6 - 6x + 12 = 48, x = 7 - 2x - 1 = 13, x = 8 - 2x - 8 = 8, x = 10 - 3x - 4 = 26, x = 11 - 7x - 4 = 73, x = 12 - 5x - 3 = 57, x = 20 - 8x - 4 = 156,

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