10 10/17-(х+2/17)= 8 9/17
Раскроем скобки:
10 10/17 - ( Х + 2/17) = 8 9/17; Х + 2/17 = 10 10/17 - 8 9/17; Х + 2/17 = 2 1/17; Х = 2 1/17 - 2/17; Х = 1 16/17.