Бабушка старше внука на 48 лет. Сколько лет внуку, если бабушка втрое старше внука? Решите задачу алгебраическим способом.

American Customs

1. Americans are very punctual. It is important to be on time at business, social and public events. If you must miss an appointment for any reason, call to the person you were supposed to meet, saying that you won’t be able to come.

 When you are invited to a home where food will be served, it is best to let your host or hostess know in advance if you are on diet or not. It is all right to say: “ No, thanks”, if you would rather not eat or drink what is being served. No further explanation is needed but id you would like to explain, people are interested.Переведите пожалуйста