A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

how do you solve x-4 1 ---- = ------ x+6 7

  • This Question is Closed
  1. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    to start out, lets get everything out of fraction mode. multiply everything by 7, then multiply everything by (x+6)..what do we get for that?

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

    you mean taking the first part and multiplying it by 7 right then you would get 7x-4 and 7x+6 right?

  3. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    close, but we are not multiplying by 7/7...that would not help... 7(x-4) 1 (7) ----- = ------ what does this equal? (x+6) 7

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry it is 7x-28 and 7 which makes the second half a whole number of 1 right

  5. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    if I understand you correctly, then yes; we get: 7x-28 ----- = 1 (x+6) now we multiply both sides by (x+6): (x+6) (7x-28) ------------ = 1(x+6) what does this do for us? (x+6)

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

    7x^2-168 = x+6

  7. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    close.... but lets see if we can see what happens here: whenever a number is divided by itself it equals 1: 4/4 = 1 7/7 = 1 (x+6)/(x+6) = 1 (x+6) (7x-28) ----- ------- = 1(x+6) means: (x+6) 1(7x-28) = 1(x+6) right?

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    7x-28= x+6

  9. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    very good.. now do you know how to solve it from here?

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    then you subtract the x from x+6

  11. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes... and whatever you do to one side, you have to do the same thing to the other... so lets subtract x from both sides: 7x-x -28 = x-x +6 6x - 28 = 0+6 6x -28 = 6 right? now what?

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    add 28 to the 6 then you get 6x=34 then divide both sides by 6 and you get 5.6

  13. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    very good :) but I dont think.... the exact amount would be 34/6 which can be reduced to 17/3. 17/3 = 5.666666666666666........ the (6)s never end.

  14. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    we can keep it as 17/3, or estimate its value to 5.6; or maybe 5.7

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    awesome thanks for the help it was nice to have some one to work the problem with me

  16. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    youre welcome :)

  17. 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.