Question

3ln(4x)=13

[A] 19.049
[B] 1.083
[C] 17.333
[D] 0.367

Please explain how you got the answer so I may learn. Thank you!

Answer 1

3 * ln 4x = 13 

<=> 

ln 4x = 13/3 

<=> 

4x = e^(13/3) 

<=> 

x = e^(13/3) / 4 

<=> 

x ~ 19.05