12 3/17 + х+8 16/17=23 2/17
х=23 2/17-8 16/17-12 3/17
х=2
12 3/17+х+8 16/17 = 23 2/17
х = 23 2/17-8 16/17-12 3/17
х = 393/17-152/17-207/17
х = 34/17 = 2
Проверяем:
207/17+34/17+152/17 = 393/17 = 23 2/17
ответ: 2.
12 3/17 + х+8 16/17=23 2/17
х=23 2/17-8 16/17-12 3/17
х=2
12 3/17+х+8 16/17 = 23 2/17
х = 23 2/17-8 16/17-12 3/17
х = 393/17-152/17-207/17
х = 34/17 = 2
Проверяем:
207/17+34/17+152/17 = 393/17 = 23 2/17
ответ: 2.