SOLUTION: Good afternoon. Can anyone help me solve: 4+5e^-x=9 also, In(4x)= 3 Thanks in advance for the assistance.

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Question 481887: Good afternoon. Can anyone help me solve:
4+5e^-x=9
also, In(4x)= 3

Thanks in advance for the assistance.
Found 2 solutions by solver91311, Alan3354:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!








Multiply both sides by



Since





John

My calculator said it, I believe it, that settles it
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Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
4+5e^-x=9
5e%5E%28-x%29+=+5
e%5E%28-x%29+=+1
x = 0
-------
also, In(4x)= 3
It's Ln, natural log.
ln(4x) = 3
4x+=+e%5E3
x+=+%28e%5E3%29%2F4
x =~ 5.021