Find number abc
If aacb8 - ca30c = 399ba find number abc. Multiple solutions may exist.Correct answers: 49
The first user who solved this task is Nílton Corrêa De Sousa.
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First US psychology professorIn 1889, the University of Pennsylvania became the first U.S. university to have a professor of psychology with the appointment of James McKeen Cattell as the first academic to have the title in that field. |