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--+--+--+--+-- =30.Solve the puzzle with the
--+--+--+--+-- =30.Solve the puzzle with the numbers(1,3,5,7,9,11,13,15).Numbers can be repeated.Only addition operation allowed.

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AL2006
I don't think it's possible, because any odd number of odd numbers
always add up to an odd number.
konrad509
All given numbers are odd. The sum of odd number (in this case 5) of odd numbers is odd as well and 30 is an even number. Because of that, there's no solution.

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