Find number abc
If c600b - aca02 = b670a find number abc. Multiple solutions may exist.Correct answers: 30
The first user who solved this task is Djordje Timotijevic.
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George DollondBorn 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. |