Math Problem Statement

log(x+5) = 2

Solution

To solve the equation log(x+5)=2\log(x+5) = 2, we proceed as follows:

Step 1: Understand the logarithmic equation

The logarithmic equation log(x+5)=2\log(x+5) = 2 is understood to be in base 10 (common logarithm). By the definition of logarithms:

logb(a)=c    a=bc\log_b(a) = c \implies a = b^c

Here, b=10b = 10, a=x+5a = x+5, and c=2c = 2.

Step 2: Rewrite the equation

Using the definition of logarithms:

x+5=102x + 5 = 10^2

Step 3: Simplify the equation

x+5=100x + 5 = 100

Step 4: Solve for xx

Subtract 5 from both sides:

x=1005=95x = 100 - 5 = 95

Final Answer:

x=95x = 95

Would you like a deeper explanation or assistance with related problems?


Related Questions:

  1. What are the properties of logarithms, and how do they apply in solving equations?
  2. How would the solution differ if the base of the logarithm were not

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Math Problem Analysis

Mathematical Concepts

Logarithms
Exponential Functions
Basic Algebra

Formulas

log_b(a) = c implies a = b^c

Theorems

Definition of Logarithms

Suitable Grade Level

Grades 9-11