1).(х+3/17)-8/17=5/17
2).(19/36+х)-7/36=13/36

(6 7/12 - 3 17/36) * 2,5 - 4 1/3 : 0,65 = 1 1/9

1) 6 7/12 - 3 17/36 = 6 21/36 - 3 17/36 = 3 4/36 = 3 1/9

2) 3 1/9 * 2,5 = 28/9 * 25/10 = 350/45 = 7 35/45 = 7 7/9

3) 4 1/3 : 0,65 = 13/3 : 65/100 = 13/3 * 100/65 = 100/15 = 6 10/15 = 6 2/3

4) 7 7/9 - 6 2/3 = 7 7/9 - 6 6/9 = 1 1/9

Пошаговое объяснение:

1).(х+3/17)-8/17=5/17

x + 3/17 - 8/17 = 5/17

x - 5/17 = 5/17

x = 5/17 + 5/17

x = 10/17

2).(19/36+х)-7/36=13/36

19/36+x-7/36=13/36

1/3+x=13/36

x=13-1/3

x=1/36