1) 22; 26; 62; 66
2) 10; 11; 17; 70; 71; 77
3) 33; 35; 39; 53; 55; 59; 93; 95; 99
155-6*х=73
6х = 155-73
6х = 82
х = 82/6 = 13 2/3
540/x +85 = 91
540/x = 91-85
540/x = 6
х=540/6
x = 90
23+х*39=2636
x*39 = 2636 - 23
x*39 = 2613
x = 2613 : 39
x = 67
-------------------------
23 + 67*39 = 2636
39
2613 |------------
234 67
---------
273
273
---------
0