Find number abc
If 7b458 - ab8cc = ba58 find number abc. Multiple solutions may exist.Correct answers: 50
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TelegraphIn 1885, Granville T. Woods, a prolific black American inventor, patented an “Apparatus for Transmission of Messages by Electricity,”No. 315,368. In the following years he introduced numerous innovations for use on railroads, applying electricity for telegraphy, brakes, overhead conductors, controls and an electric railway. |