A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

jessiegonzales

  • one year ago

MEDAL!!!! 20. Combine like terms. What is a simpler form of each expression? 9c-6d+4c-3d

  • This Question is Closed
  1. misssunshinexxoxo
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    9c + 4c - 6d - 3d. 9c + 4c = 13c, so overall, it simplifies down to 13c - 9d.

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

    okay thanks one question! 6d-3d=3d? so wouldn't it be 13c-3d?

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

    What are your answer choices?

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

    there are no answer choices

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

    @butterflydreamer

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

    Do you know how to simplify?

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

    yes

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

    so 13c-9d is the answer?

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

    let me check first we rearrange the terms 9c+4c-6d-3d

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

    we are just adding for c 9c+4c = 13c we are dealing with negative numbers for d -6d-3d = -9d so let's modify the problem 9c+4c+6d-3d

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

    the c portion remains the same.. we just have to figure out what 6d-3d is

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

    3d

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

    mhm so the answer is 13c+3d

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

    yes thanks

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

    When we are dealing with problems like -6d-3d both of these numbers are negative so the negative sign remains and your number should increase the problem can also be re-written as -6d+(-3d) but normally the + sign is dropped because writing 2 signs at once is frowned upon, so it becomes -6d-3d 6d-3d is just normal subtraction.

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

    oh.. so 13c+9d is the answer

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

    sort of .. the negative sign stays for -6d-3d

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

    -6d is negative -3d is also negative -6d-3d produces a bigger negative number.. d(-6-3) (I factored out the d to make it easier to see that -6-3 = -9)

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

    so 13c+9d is the answer

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

    . 13c-9d was the correct answer... I typed that we have a negative number and another negative number.... which is -6d-3d .. that negative sign stays.

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

    I'll use a number line |dw:1435040305329:dw|

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

    we have the problem -6-3... I start at -6|dw:1435040356711:dw|

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

    -3 means I have to move 3 units to the left. -6-3 = -9|dw:1435040379706:dw|

  24. 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.