Ответ Проверено экспертом Автор - Trover 5·x = 500-4605·x = 40x = 40:5x = 8y:23 = 36:12y:23 = 3y = 3·23y = 691000-x = 600-531000-x = 647-x = 647-1000-x = -353x = 353