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not too special
1. x = number of times per week
2. 2x
3. 2x + 5
4. 50(2x + 5)
5. 50(2x + 5) + 1754
6. b = year of birth : 50(2x + 5) + 1754 - b
that equals
100x + 250 +1754 - b
that equals
100x + 2004 - b
2004 - b = your age
100x is the first digit in your answer
when you said it only works for this year, that is correct, but you could just increment 1754 to get it to work next year
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