Find number abc
If b4c4a + 5a066 = 1a7a09 find number abc. Multiple solutions may exist.Correct answers: 28
The first user who solved this task is Nasrin 24 T.
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Zinc extractionIn 1857, a U.S. patent (#16,362), which was the country's first patent related to zinc ore was issued to Samuel Wetherill, Bethlehem, Pa. |