Math Problem Statement

Explain how to solve 3x − 4 = 6 using the change of base formula . Include the solution for x in your answer. Round your answer to the nearest thousandth.

Solution

To solve the equation 3x4=63x - 4 = 6 using the change of base formula, we first need to isolate the variable xx.

Step 1: Isolate the variable

Start by adding 4 to both sides of the equation:

3x4+4=6+43x - 4 + 4 = 6 + 4

3x=103x = 10

Next, divide both sides by 3 to solve for xx:

x=103x = \frac{10}{3}

x3.333x \approx 3.333

Using the Change of Base Formula

However, since you asked for the use of the change of base formula, let's interpret this in the context of logarithms. The change of base formula is typically used for logarithmic equations, and here’s how it works:

logba=logcalogcb\log_b a = \frac{\log_c a}{\log_c b}

But in this linear equation 3x4=63x - 4 = 6, logarithms are not required. The solution x3.333x \approx 3.333 was obtained directly from the linear equation. The change of base formula is not applicable to this type of problem, as it is used to convert between different logarithmic bases, not for solving linear equations.

Thus, the solution for xx is:

x3.333x \approx 3.333

Final Answer

3.333\boxed{3.333}

Summary

In summary, the equation 3x4=63x - 4 = 6 was solved by first isolating xx to find that x3.333x \approx 3.333. The change of base formula is not applicable to solving this type of linear equation.


Do you have any questions or would you like more details?

Here are 8 related questions:

  1. What is the change of base formula and how is it used?
  2. How do you solve logarithmic equations using the change of base formula?
  3. What are the steps to solve a linear equation?
  4. How can you check the solution to a linear equation?
  5. What is the difference between linear equations and logarithmic equations?
  6. Can you apply logarithms to linear equations directly?
  7. How do you round numbers to the nearest thousandth?
  8. How do you solve an equation with multiple steps?

Tip: When solving equations, always perform the same operation on both sides to keep the equation balanced.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Logarithms

Formulas

Change of Base Formula

Theorems

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Suitable Grade Level

Grades 9-12