x = -3 : 7 - 7x + 3 = 0, x = -1 : 5 - 5x + 1 = 0, x = -5 : 2 - 2x + 5 = 0, x = -9 : 1 - x + 9 = 0, x = -6 : 8 - 8x + 6 = 0, x = 3 : 2 - 2x - 3 = 0, x = 6 : 1 - x - 6 = 0, x = 9 : 5 - 5x - 9 = 0, x = 8 : 7 - 7x - 8 = 0, x = 9 : 8 - 8x - 9 = 0,

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