Question
upstudy study bank question image url

Solve for \( x \) : \( \log (x+4)-\log (x+3)=2 \) \( x=\square \) You may enter the exact value or round to 4 decimal places.

Ask by Cervantes Mullins. in the United States
Mar 18,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

\( x=-\frac{296}{99} \) or \( x=-2.988 \)

Solution

Sign in to Unlock Answers for Free!

A Learning Platform Trusted by Millions of Real Students and Teachers.

star-icon Unlock

Answered by UpStudy AI and reviewed by a Professional Tutor

Mind Expander

To solve for \( x \) in the equation \( \log (x+4)-\log (x+3)=2 \), we can use the properties of logarithms. First, apply the logarithmic property that states \( \log a - \log b = \log \left( \frac{a}{b} \right) \): \[ \log \left( \frac{x+4}{x+3} \right) = 2. \] Now, we can convert the logarithmic equation to its exponential form: \[ \frac{x+4}{x+3} = 10^2, \] which simplifies to: \[ \frac{x+4}{x+3} = 100. \] Next, cross-multiply: \[ x + 4 = 100(x + 3). \] Expanding the right side gives: \[ x + 4 = 100x + 300. \] Now, rearranging the equation results in: \[ 4 - 300 = 100x - x, \] which simplifies to: \[ -296 = 99x. \] Dividing by 99 yields: \[ x = -\frac{296}{99} \approx -2.9798. \] Thus, the final answer is: \( x = -\frac{296}{99} \) or approximately \( -2.9798 \).

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy