Question
upstudy study bank question image url

wing: \( f(x)=\frac{2 x+5}{5}-2 \) b. What is the input when \( f(x)=-3 \)

Ask by Floyd Hammond. in the United States
Jan 23,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

When \( f(x) = -3 \), the input is \( x = -5 \).

Solution

To find the input \( x \) when \( f(x) = -3 \) for the function: \[ f(x) = \frac{2x + 5}{5} - 2 \] **Step 1: Set \( f(x) \) equal to -3** \[ \frac{2x + 5}{5} - 2 = -3 \] **Step 2: Add 2 to both sides to isolate the fraction** \[ \frac{2x + 5}{5} = -3 + 2 \] \[ \frac{2x + 5}{5} = -1 \] **Step 3: Multiply both sides by 5 to eliminate the denominator** \[ 2x + 5 = -1 \times 5 \] \[ 2x + 5 = -5 \] **Step 4: Subtract 5 from both sides to solve for \( 2x \)** \[ 2x = -5 - 5 \] \[ 2x = -10 \] **Step 5: Divide both sides by 2 to find \( x \)** \[ x = \frac{-10}{2} \] \[ x = -5 \] **Conclusion:** When \( f(x) = -3 \), the input is \( x = -5 \).

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

Beyond the Answer

To find the input when \( f(x) = -3 \), we set up the equation: \[ -3 = \frac{2x + 5}{5} - 2 \] First, add 2 to both sides: \[ -3 + 2 = \frac{2x + 5}{5} \] \[ -1 = \frac{2x + 5}{5} \] Now, multiply both sides by 5: \[ -5 = 2x + 5 \] Next, subtract 5 from both sides: \[ -5 - 5 = 2x \] \[ -10 = 2x \] Finally, divide by 2: \[ x = -5 \] So, the input when \( f(x) = -3 \) is \( x = -5 \).

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