1) 13x = 195
x = 195 : 13
x = 15
2) x × 18 = 468
x = 468 : 18
x = 26
3) 11x + 6x = 408
17x = 408
x = 408 : 17
x = 24
4) 33m - m = 1024
32m = 1024
m = 1024 : 32
m = 32
5) x : 19 = 26
x = 26 × 19
x = 494
6) 476 : x = 14
x = 476 : 14
x = 34