Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

johnnyalln

  • 2 years ago

Solve for x: \frac{ 1 }{ 27 }=9^{7x+3}

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

    I will adjust the format.. one moment..

  2. mukushla
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    make the bases of 2 sides equal to each other then u can equate the powers and find the value of x.

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

    \[1/27=9^7x+3\]

  4. mukushla
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    u mean\[\frac{ 1 }{ 27 }=9^{7x+3}\]

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

    i get 3^3?

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

    yes, sorry

  7. mukushla
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    np :) ... yeah u r close but note that\[\frac{1}{27}=\frac{1}{3^3}=3^{-3}\]

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

    oh of course! got that..

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

    and then make the 9 = 3^2?

  10. mukushla
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah...quite right

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

    \[3^{-3}=3^{14x+6}\]

  12. mukushla
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Right...

  13. mukushla
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now go for solving for x

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

    \[-\frac{ 9 }{ 14 }\]

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

    you rock! thanks for the help.. the -3 is what got me! :)

  16. mukushla
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yw :)

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.