Find number abc
If 73a6c + 75bbc = 1c91cb find number abc. Multiple solutions may exist.Correct answers: 5
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Edison opens his first lamp factoryIn 1880, the first electric incandescent lamp factory in the U.S. was opened in Menlo Park, N.J. The Edison Lamp Works. More than 130,000 bulbs had been manufactured by the time the plant was moved to Harrison, N.J. on 1 Apr 1882. |