Math Problem Statement

If log2(3x + 2) = 4, then solve for x.

Solution

The equation in the image is:

log2(3x+2)=4\log_2(3x + 2) = 4

To solve for xx:

Step 1: Rewrite the logarithmic equation in exponential form.

Since the base is 2, you can rewrite the equation as:

3x+2=243x + 2 = 2^4

Step 2: Simplify the right-hand side.

24=162^4 = 16 So the equation becomes: 3x+2=163x + 2 = 16

Step 3: Solve for xx.

First, subtract 2 from both sides: 3x=143x = 14

Then, divide both sides by 3: x=143=4.6x = \frac{14}{3} = 4.\overline{6}

Step 4: Round to 4 decimal places (if necessary).

The value of xx is approximately: x=4.6667x = 4.6667

So, x=143x = \frac{14}{3} or approximately 4.66674.6667.

Would you like more details or have any questions?

Here are 5 related questions for practice:

  1. Solve log3(2x+1)=5\log_3(2x + 1) = 5.
  2. What is the value of xx in log5(4x7)=3\log_5(4x - 7) = 3?
  3. Solve log2(x2+5x)=6\log_2(x^2 + 5x) = 6.
  4. Convert logb(x+3)=7\log_b(x + 3) = 7 to exponential form.
  5. What is xx in log4(x+2)=3.5\log_4(x + 2) = 3.5?

Tip: When solving logarithmic equations, always rewrite the equation in exponential form to simplify the solution process.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Logarithms
Algebra

Formulas

log_b(a) = c → a = b^c
Basic algebraic manipulation

Theorems

-

Suitable Grade Level

Grades 9-11