Undeleted
Please vote to undelete How to solve this equations in modular arithmetic? $6247x \equiv 1139 \pmod{9461}$
The question might have come from http://www.cse.cuhk.edu.hk/~andrejb/engg2440/hw/16H03.pdf which specifically says that any use of online material must be properly cited and credited. Deleting the question after receiving an answer seems in bad taste.
