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A = 14、21、28、35 解此方程: 6B + B = A 1< B < 6 即 A = 7B 1< B < 6,7< A < 42 囙此當B = 2、3、4、5時,A = 14、21、28、35,即有: 14÷6 = 2……2 21÷6 = 3……3 28÷6 = 4……4 35÷6 = 5……5
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