решите уровнение (19х+62):15=13

(19х + 62):15 = 1319х + 62 = 13*1519х + 62 = 19519х = 195-6219х = 133Х = 133:19Х = 7--------(19*7 +62):15 = 13(133+62):15 = 13195:15 = 1313 = 13

=19х+62=13*1519х+62=19519х=195-6219х=133х=133:19х=7Проверяем:(19х7+62):15=13(133+62):15=13195:15=13