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In(2x - 1) = 5????????????????

1 Answer

4 votes

Answer and Step-by-step explanation:

We are trying to solve for x in the equation
ln(2x - 1) = 5.

First, we need to get rid of the natural log on the left side. We do this by taking the inverse natural log on both sides.

Follow this formula:
log_b(M)=N == > M = b^N\\Log Function == > Exponential Function

In our case,
log_b(M) is
ln(2x-1) and
N is
5.

Note that the Natural Log has a base of e, a mathematical constant known as Euler's number and is approximately 2.71828.


e^(ln(2x - 1)) = e^(5)\\\\2x - 1 = e^(5)

Now, add 1 to both sides of the equation.


1+ 2x - 1 = e^(5) + 1\\\\2x = e^5+1

Finally, divide both sides of the equation by 2.


(2x)/(2) = (e^5+1)/(2) \\\\x = (e^5+1)/(2)

So, the answer is
x = (e^5+1)/(2).

User Daniel Mermelstein
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