x + 78 = 95, x = 13, x = 17, x = 20, 2x + 8 = 20, x = 10, x = 8, x = 6, 2x + 3 = 9, x = 8, x = 3, x = 10, x + 2 = 7, x = 5, x = 3, x = 9, 3x +2 = 14, x = 9, x = 7, x = 4, 2x + 6 =12, x = 8, x = 3, x = 5.

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