1.
6 5/8 - х = 1 3/8.
x = 6 5/8 - 1 3/8
x = 5 2/8
x = 5 1/4
2.
х + 1 3/14 = 3 9/14
x = 3 9/14 - 1 3/14
x = 2 6/14
x = 2 3/7
3.
2 7/18 + х = 15 5/18.
x = 15 5/18 - 2 7/18
x = 14 23/18 - 2 7/18
x = 12 16/18
x = 12 8/9
4.
х - 2 5/16 = 4 13/16.
x = 4 13/16 + 2 5/16
x = 6 18/16
x = 7 2/16
x = 7 1/8
5.
23 - х = 18 1/7.
x = 23 - 18 1/7
x = 22 7/7 - 18 1/17
x = 4 6/7
6.
х + 5 15/37 = 34.
x = 34 - 5 15/37
x = 33 37/37 - 5 15/37
x = 28 22/37
7.
(8 5/17 - х) - 2 25/17 = 3 25/17.
8 5/17 - x = 3 25/17 + 2 25/17
8 5/17 - x = 5 50/17
x = 8 5/17 - 5 50/17
x = 8 5/17 - 7 16/17
x = 7 22/17 - 7 16/17
x = 6/17
8.
20 1/9 - (х - 4 17/19) = 7 18/19.
20 1/9 - x + 4 17/19 = 7 18/19
24 18/19 - x = 7 18/19
x = 24 18/19 - 7 18/19
x = 17