Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Mello

  • 3 years ago

If (a+4b)/(5a-7b)=2, find the value of (3a-7b)/(a+b).

  • This Question is Closed
  1. sauravshakya
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    (a+4b)/(5a-7b)=2 a+4b=10a-14b 9a=18b a=2b

  2. sauravshakya
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    right?

  3. zzr0ck3r
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    solve for a, then use that to solve for the other expression

  4. sauravshakya
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Now, substitute a=2b in (3a-7b)/(a+b)

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

    CAn u?

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

    @sauravshakya I think I would end with variables in the answer. My teacher told me it would be a number value.

  7. sauravshakya
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Yes the answer will be number value

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

    @zzr0ck3r Can you explain how?

  9. sauravshakya
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Just try it

  10. zzr0ck3r
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    just work it through

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

    @sauravshakya OH! I see now. Thank you!!

  12. sauravshakya
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Welcomx

  13. 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