а) х:480=9600                б)1836:(26-4у)=102           в)(7z-93):48:8=24:12

х=9600*480                       26-4у=18                      7z-93=768

х=4608000                       4у=8                               7z=861

Ответ: х=4608000          у=2                                    z=123

                                        Ответ: у=2                         Ответ: z=123