Question
upstudy study bank question image url

What are the solutions to the equation \( x-\frac{7}{x}=6 ? \)

Ask by Bob Paul. in the United States
Mar 11,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The solutions are \(x=-1\) and \(x=7\).

Solution

Solve the equation \( x-\frac{7}{x}=6 \). Solve the equation by following steps: - step0: Solve for \(x\): \(x-\frac{7}{x}=6\) - step1: Find the domain: \(x-\frac{7}{x}=6,x\neq 0\) - step2: Multiply both sides of the equation by LCD: \(\left(x-\frac{7}{x}\right)x=6x\) - step3: Simplify the equation: \(x^{2}-7=6x\) - step4: Move the expression to the left side: \(x^{2}-7-6x=0\) - step5: Factor the expression: \(\left(x-7\right)\left(x+1\right)=0\) - step6: Separate into possible cases: \(\begin{align}&x-7=0\\&x+1=0\end{align}\) - step7: Solve the equation: \(\begin{align}&x=7\\&x=-1\end{align}\) - step8: Check if the solution is in the defined range: \(\begin{align}&x=7\\&x=-1\end{align},x\neq 0\) - step9: Find the intersection: \(\begin{align}&x=7\\&x=-1\end{align}\) - step10: Rewrite: \(x_{1}=-1,x_{2}=7\) The solutions to the equation \(x-\frac{7}{x}=6\) are \(x=-1\) and \(x=7\).

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

Extra Insights

To solve the equation \( x - \frac{7}{x} = 6 \), we first multiply through by \( x \) (assuming \( x \neq 0 \)) to eliminate the fraction, resulting in \( x^2 - 7 = 6x \). Rearranging this gives us a standard quadratic equation: \( x^2 - 6x - 7 = 0 \). Next, we can factor it as \( (x - 7)(x + 1) = 0 \). Therefore, the solutions are \( x = 7 \) and \( x = -1 \). Now, if we substitute these values back into the original equation, both will satisfy it, confirming they are indeed the correct solutions!

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