Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

  • This Question is Closed
  1. gaby236
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i need help

  2. gaby236
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    solve for y

  3. gaby236
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -2/5 -9/80 -3.5 i think a

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

    1) Wite down \[y \ne 0\]2) Multiply everything by y. 3) Multiply everything by 7 4) Multiply everything by 3 5) Multiply everything by 2 There are other ways to proceed. This is just one with what I hope is an obviuos goal.

  5. jayz657
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    lets simplify the left side first factor in the 3 and get 3y+ 21 so you have (3y + 21 / 7y) -(4y -7/6) find common denominator so it will be like this [6(3y+21) - 7y(4y -7) ] / 7y simplifying [18y + 126 - 28y^2 + 49 ] / 7y [ -28y^2 + 18y + 175 ]/7y now lets simplify right side multiply in the 2 14y -2 / 21 find common denominator [21(7y+10) - 3y(14y - 2)] / 63y simplify [147y + 120 - 42y^2 + 6y] / 63y [-42y^2 + 153y + 120 ] / 63y now your equation looks like this: [-28y^2 + 18y + 175]/7y = [-42y^2 + 153y + 120]/63y cross multiply 63y[-28y^2 + 18y + 175] = 7y [-42y^2 + 153y + 120] cancel out 7y on both sides 9[-28y^2 + 18y + 175] = -42y^2 + 153y + 120 multiply in 9 -252y^2 + 162y + 1575 = -42y^2 + 153y + 120 simplify -210y^2 - 9y + 1455 = 0 factor using quadrictic formula should give you your answer

  6. gaby236
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    is -2/5

  7. gaby236
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    is correct my answer

  8. jayz657
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry i might of made a mistake in that math but the process of doing it is correct

  9. gaby236
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @RadEn

  10. gaby236
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @robtobey

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

    wolfram told me the answer is -2/5 :) u are correct http://www.wolframalpha.com/input/?i=%283%28y%2B7%29%2F7y%29-%28%284y-7%29%2F6%29%3D%28%287y%2B10%29%2F3y%29-%282%287y-1%29%2F21%29&dataset=

  12. 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.