Answer:
15
Step-by-step explanation:
The absolute value takes any value and makes it positive.
|15| = 15
3 * ln 4x = 13
<span><=> </span>
<span>ln 4x = 13/3 </span>
<span><=> </span>
<span>4x = e^(13/3) </span>
<span><=> </span>
<span>x = e^(13/3) / 4 </span>
<span><=> </span>
<span>x ~ 19.05 </span>
89.890 Is what I would think it would be. Hope it helped.