( 8 5/17 -х) - 2 25/27 = 1 25/27
8 5/17 - х = 1 25/27 + 2 25/27
8 5/17 -х = 3 + 1 23/27
8 5/17 - х= 4 23/27
х= 8 5/17 - 4 23/27
х= 141/17 - 131/27
х= (3807 - 2227) / 459
х= 1580/459
х= 3 203/459
Проверим:
( 8 5/17 - 3 203/459) - 2 25/27 = 1 25/27
((3807-1580) /459 ) - 79/27 = 1 25/27
2227/459 - 1343/459 = 1 25/27
884/459 = 1 25/27
52/27 = 1 25/27
1 25/27 = 1 25/27