1) 8 + x =1 1/11? 2) x-4. 8/25 = 2 17/ 25. 3) 10 - x = 5 6/13?

Question

1) 8 + x =1 1/11? 2) x-4. 8/25 = 2 17/ 25. 3) 10 - x = 5 6/13?

Answer 1

1) х= 1 1/11 - 8
х= -6 10/11
2) прости не понимаю
3) х= 5 6/14-10
х= -4 4/7

Answer 2

1) x=12/11-8
    x=12/11-88/11
    x= -76/11
    x= -6 10/11
2) x=67/25+108/25
    x=175/25
    x=7
3) -x=71/13-10
    -x=71/13-130/13
    -x= -59/13
    x=4 7/13