I am doing a review on logarithms. When I reached my last question's solution I found something strange.
Question: Solve, Ln(y-1)=1+Ln(3y+2)
The solution gives:
Step 1. Ln(y-1)-Ln(3y+2)=1
Step 2. e^( Ln((y-1)/(3y+2))=e^1
The solution then goes on:
Can you tell me what's wrong here and what does e mean without an index?
Or is there something I have failed to recognise?