7 1/3x - 3 1/7= 19 13 /21 решите пж СРОЧНО
7 1/3х - 3 1/7 = 19 13/21 7 1/3х = 19 13/21 + 3 1/7 7 1/3х = 19 13/21 + 3 3/21 7 1/3х = 22 16/21 х = 22 16/21 : 7 1/3 х = 3 8/77 Ответ: 3 8/77