х = 1 1/35
Пошаговое объяснение:
3 3/14 - 1 7/8x = 1 2/7
45/14 - 15/8х = 9/7
15/8х = 45/14 - 9/7
15/8х = 45/14 - 18/14 = 27/14
х = 27/14 : 15/8 = 27/14 * 8/15
х = 1 1/35
Проверим:
45/14 - 15/8*1 1/35 = 1 2/7
45/14 - 15/8*36/35 = 1 2/7
45/14 - 27/14 = 1 2/7
18/14 = 1 2/7
9/7 = 1 2/7
1 2/7 = 1 2/7 - верно
