I am grateful for this year after all!) The more I thank him so that I had more friends, acquaintances, began to devote more time to the parents, for me it was the best year of his most vivid impressions!) My friend appeared the dog with which we often played in the summer!) I tried to be Yeshe better and improve ourselves!) I like it could be difficult, but I tried!) I bragodaren everything and for everything they have done for me and was carried out at the time!) me in the next year will be even better !)
То такое 3а? Если а - натуральное, то 3а = 3 (а = 1) 3а = 6 ( а = 2) 3а = 9 ( а = 3) ... Что такое 2а? Если а - натуральное, то 2а = 2 (а = 1) 2а = 4 ( а = 2) 2а = 6 ( а = 3) ... Теперь проверяем: 1) а = 1 Числа 3 и 2. Между ними нет ни одного натурального числа. (чисел 0) 2)а = 2 Числа 6 и 4. Между ними стоит число 5 (чисел 1) 3) а = 3 Числа 9 и 6. Между ними стоят числа 7 и 8 (чисел 2) ответ: Между числами 2а и 3а находится а -1 чисел.
15х+10=132
15х=122
х=122:15
х=8.13
525:к-82=23
525:к=105
к=5
должно быть правильно!