> **Undeleted**

Please vote to undelete http://math.stackexchange.com/questions/1970728/how-to-solve-this-equations-in-modular-arithmetic-6247x-equiv-1139-pmod9461

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.