Math Problem Statement

e^{x+3}=5

Solution

To solve the equation ex+3=5e^{x+3} = 5, we can follow these steps:

  1. Take the natural logarithm (ln) of both sides to eliminate the exponential: ln(ex+3)=ln(5)\ln(e^{x+3}) = \ln(5)

  2. Simplify the left side using the property ln(ea)=a\ln(e^a) = a: x+3=ln(5)x + 3 = \ln(5)

  3. Solve for xx by isolating it: x=ln(5)3x = \ln(5) - 3

  4. Calculate the value of ln(5)\ln(5) (using a calculator): ln(5)1.6094\ln(5) \approx 1.6094 So, x1.60943=1.3906x \approx 1.6094 - 3 = -1.3906

Thus, the solution is approximately x1.3906x \approx -1.3906.

Would you like further details or have any questions?

Here are 5 related questions:

  1. How would you solve ex+2=10e^{x+2} = 10?
  2. What is the natural logarithm, and how does it relate to the exponential function?
  3. Can you solve e2x=7e^{2x} = 7 for xx?
  4. How do we simplify expressions involving exponents and logarithms?
  5. What happens if the base of the exponential is not ee?

Tip: Always remember that ln(ex)=x\ln(e^x) = x when solving logarithmic and exponential equations!

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Logarithms

Formulas

ln(e^a) = a
x = ln(b) - c

Theorems

Properties of Logarithms

Suitable Grade Level

Grades 10-12