To solve the equations:

1) (720+e) * 501 = 365730
Rearrange the equation:
501e + 360720 = 365730
Subtract 360720 from both sides:
501e = 50010
Divide by 501:
e = 100

2) 5t + 30 - 2t = 42
Combine like terms:
3t + 30 = 42
Subtract 30 from both sides:
3t = 12
Divide by 3:
t = 4

3) 36 (x-3) = 10 - 2 (x + 2)
Distribute the 36 on the left side:
36x - 108 = 10 - 2x - 4
Combine like terms:
36x - 108 = 6 - 2x
Add 2x to both sides:
38x - 108 = 6
Add 108 to both sides:
38x = 114
Divide by 38:
x = 3

Therefore, e = 100, t = 4, and x = 3.