How do you solve 2ln(-x)+7=142ln(−x)+7=14?

1 Answer
Gió
Jul 29, 2016

I found: x=-33.1154x=−33.1154

Explanation:

Let us manipulate our expression:
2ln(-x)=14-72ln(−x)=14−7
ln(-x)=7/2ln(−x)=72
Usecthe definition of (natural) log:
-x=e^(7/2)−x=e72
x=-33.1154x=−33.1154

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