## Enter natural log statement

Evaluate the following logarithmic expression

ln(4x)=5

##### Isolate 4x

Use a logarithmic identity

eLn(x) = x
so we raise each side of our equation using e

eln(4x) = e5

4x = 148.41315910258

##### Isolate x

Divide each side by 4

 4x 4
 =
 148.413 4

##### Cancelling the 4 on the left side, we get:

x = 37.103289775644

x = 37.103289775644

x = 37.103289775644
##### How does the Logarithms and Natural Logarithms and Eulers Constant (e) Calculator work?
Free Logarithms and Natural Logarithms and Eulers Constant (e) Calculator - This calculator does the following:
* Takes the Natural Log base e of a number x Ln(x) → logex
* Raises e to a power of y, ey
* Performs the change of base rule on logb(x)
* Solves equations in the form bcx = d where b, c, and d are constants and x is any variable a-z
* Solves equations in the form cedx=b where b, c, and d are constants, e is Eulers Constant = 2.71828182846, and x is any variable a-z
* Exponential form to logarithmic form for expressions such as 53 = 125 to logarithmic form
* Logarithmic form to exponential form for expressions such as Log5125 = 3

This calculator has 1 input.

### What 8 formulas are used for the Logarithms and Natural Logarithms and Eulers Constant (e) Calculator?

Ln(a/b) = Ln(a) - Ln(b)
Ln(ab)= Ln(a) + Ln(b)
Ln(e) = 1
Ln(1) = 0
Ln(xy) = y * ln(x)

For more math formulas, check out our Formula Dossier

### What 4 concepts are covered in the Logarithms and Natural Logarithms and Eulers Constant (e) Calculator?

euler
Famous mathematician who developed Euler's constant
logarithm
the exponent or power to which a base must be raised to yield a given number
natural logarithm
its logarithm to the base of the mathematical constant e
eLn(x) = x
power
how many times to use the number in a multiplication