x = 39 / (65 / 5)
x = 39 / 13
x = 3

Now we can substitute x back into the second equation to check if it equals 20 / 10:

(4 * 12) / 3 = 20 / 10
48 / 3 = 20 / 10
16 = 2

Since 16 is not equal to 2, there seems to be a mistake in the calculations. Let's revisit the equations:

1) 65 5 x = 39
325x = 39
x = 39 / 325
x = 0.12

2) (4 * 12) / x = 20 / 10
48 / 0.12 = 20 / 10
400 = 20
This equation appears to be incorrect. Let's try to solve it again:

(4 * 12) / x = 20 / 10
48 / x = 2
48 = 2x
x = 24

Now we can check the values:

1) 65 5 24 = 39
780 = 39 (False)

The values do not satisfy the first equation, indicating that the values do not fit the given problem.