The first step to solving this is to move the constant to the right side of the equation and then change its sign.

= 20 - 3
Subtract the numbers on the right side of the equation

= 17
Since there were no variable provide for e or x,, we must take the natural logarithm of both side of the equation. This will look like the following:
x = ln(17)
This means that the correct answer to your question is x = ln(17),, or x ≈ 2.83321.
Let me know if you have any further questions
:)