Реши уравнения: (720+е)*501=365.730 5t+30-2t=42 36*(x-3)=10-2*(x+2) !

(720+е)*501=365730
720+е=365730:501
720+е=730
е=730-720
е=10

5t+30-2t=42
5t-2t=42-30
3t=12
t=4

36*(x-3)=10-2*(x+2)
36x-108=10-2x-4
36х+2х=6+108
38х=114
х=3