A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ayeeeitskateee

  • one year ago

Please help, I need an explanation. Solve the equation. Check for extraneous solutions. 9|9-8x|=2x+3

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    found Two solutions x=39/37 x=6/5

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    9|-8x+9| = 2x+3 Clear the absolute-value bars by splitting the equation into its two cases, one for the Positive case and the other for the Negative case. The Absolute Value is 9|-8x+9| For the Negative case we'll use -9(-8x+9) For the Positive case we'll use 9(-8x+9) -9(-8x+9) = 2x+3 Multiply 72x-81 = 2x+3 Rearrange and Add up 70x = 84 Divide both sides by 70 x = (6/5) 9(-8x+9) = 2x+3 Multiply -72x+81 = 2x+3 Rearrange and Add up -74x = -78 Divide both sides by 74 -x = -(39/37) Multiply both sides by (-1) x = (39/37)

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ^^

  4. ayeeeitskateee
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes, hold up. I'm reading it. Thanks!!

  5. ayeeeitskateee
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Okay, I think I got it! Thanks very much. I'm going to write this in my notebook.

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok glad to help : )

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.