Реши уравнения k×7=574 y-324=349 127+a=449
K*7=574 k=574:7 k=82 проверка 82*7=574 574=574 ======================== y-324=349 y=349+324 y=673 проверка 673-324=349 349=349 ==================== 127+a=449 a=449-127 a=322 проверка 127+322=449 449=449
7к=574 к=574:7 к=82 ---------------- 82*7=574 574=574 у=349+324 у=673 ----------------------- 673-324=349 349=349 а=449-127 а=322 ---------------------- 127+322=449 449=449