Решить (720+е)×501=365730 5t+30-12=42 36×(x-3)=10-2×(x+2)

(720+e)501=365730
360720+501e=365730
501e= 365730-360720
501e=5010
e=10

5t+30-12=42
5t+18=42
5t=42-18
5t=24
t=4,8

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