A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Compassionate

  • one year ago

Quick question

  • This Question is Closed
  1. zzr0ck3r
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    quick would be having it in the topic \(\uparrow\)

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

    \[\frac{1}{x} = \frac{x - 1}8 - \frac{x}{4} \] My first step would be \[\frac{x-1}{8} - \frac{x \times 2}{4 \times 2}\]

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

    Didn't want to put more than one line of LaTeX in the subject and make it freeze up on me.

  4. zzr0ck3r
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    I would multiply everything by \(8x\)

  5. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\huge \frac{ a }{ b } \pm \frac{ c }{ d } \implies \frac{ ad \pm bc }{ bd }\] pretty much with all fractions

  6. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I like your style zz

  7. zzr0ck3r
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    :)

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

    \[\frac{4(x - 1) - 8x}{32} \]

  9. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    That works

  10. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You can now cross multiply with the left side if you like

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

    \[4x - 4 - 8x/32 = 1/x\]

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

    I get it. So when adding or subtracting, we can use the ab + bd/ad rule, and when multiplying, we can cross multiply, and when dividing we can take the recipricol?

  13. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yeah sort of, but know what kind of algebraic rules are going on, when we cross multiply for example we're just multiplying both sides by 32 and x, so yes reciprocal. :)

  14. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I mean this rule isn't anything special, it's just as you would do fractions regularly, finding common denominator..etc

  15. zzr0ck3r
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    In general it is a good idea to learn the following trick \[\dfrac{1}{a}+\dfrac{1}{b}=\dfrac{1}{c}\\ abc\dfrac{1}{a}+abc\dfrac{1}{b}=abc\dfrac{1}{c}\\ bc+ac=ab\] When we have fractions, it is easy to clear the denominators when we have an equals sign!

  16. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Hehe yeah, I love that

  17. Astrophysics
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Especially with partial fractions

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

    Yes. Clearing fractions. I understand. I'm just brushing up on my skills.

  19. zzr0ck3r
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    word

  20. 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.