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Find number abc

If c9a4a + 22c5c = 4cb9b find number abc. Multiple solutions may exist.

Correct answers: 55

The first user who solved this task is Djordje Timotijevic.

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George Dollond

Born 25 Jan 1774; died 13 May 1852 at age 78.British optician who invented a number of precision instruments used in astronomy, geodesy, and navigation.

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