Find number abc
If a4432 + ccbcc = 1400a7 find number abc. Multiple solutions may exist.Correct answers: 48
The first user who solved this task is Nasrin 24 T.
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Electric railwayIn 1894, black American inventor, William B. Purvis patented an "Electric Railway" No. 519,291. This was just one of several patents obtained in his life. Others covered a magnetic car balancing device, electric railway switch, ten for paper bag machines. His earliest patents were for a bag fastener, a hand stamp, and a fountain pen. |