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x^2 - 2x - 7x + 14 = x^2 - 6x + 9x - 54
x^2 - 9x + 14 = x^2 + 3x - 54
x^2 - x^2 - 9x - 3x + 14 +54 = 0
-12x + 68 = 0
-12x = -68
x = -68/-12
x = 17 / 3
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