HandMud 49 - 3х = 34
3х = 49 - 34
3х = 15
х = 15 : 3
х = 5

+++++++++++++++++++++++++++++++++++++++

192 : n = 16
n = 192 : 16
n = 12

Удачи)

Грендоу 49-3-12=34
192:12=16

х=12
n=12