How do you solve 8e^4x+8=15 using natural log with e? you!

The question brought up in the comments is deciding between whether your problem is ((8e^4)x) or ((8e^(4x)). There's also the third interpretation, (using parentheses, 8e^(4x+8)).

I'll assume it's the second of these:









- - -

If instead it's the third possibility,

45x is the correct answer