Пошаговое объяснение:
8 2/15-(х+3 5/14):5 5/8=7 1/3
(x + 3 5/14) : 5 5/8 = 8 2/15 - 7 5/15
(x + 3 5/14) : 5 5/8 = 4/5
x + 3 5/14 = 4/5 * 5 5/8
x + 3 5/14 = 4/5 * 45/8
x + 3 5/14 = 4 1/2
x = 4 7/14 - 3 5/14
x = 1 2/14
x = 1 1/7
