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There is a mathematical calculation of 4 steps that will always result in the number 6. Come on, the first step is: (1) Think of a number, for example: 104; (2) Multiply it by 2: 104 x 2 = 208; (3) Now add 12 to the value: 208 + 12 = 220; (4) The next step is to divide the result by 2: 220 / 2 = 110; (5) And finally, take the value obtained in the calculation and subtract the initial number: 110 – 104 = 6. The explanation behind this result always giving 6 is in algebra.