If the order of three digits is reversed, the sum of the three digits and the original three digits is 1171, and the three digits can be calculated

Let X be the number of ten, then the number of one is 3x-2, and the number of hundred is x + 1, so 100 (x + 1) + 10x + (3x-2) + 100 (3x-2) + 10x + (x + 1) = 1171. The solution is: x = 3. A: the original three digit number is 437

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