A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

keana

  • one year ago

9r-2(r=3)=5(3r-4)-26 A: r= ? B: every real number is a solution C: the equation has no solution

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

    two `=` equal signs ?

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

    9r-2(r+3)=5(3r-4)-26 my bad

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

    \[\huge\rm 9r-2(r+3)=5(3r-4)-26\] is this ur quesiton ?

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

    yeah

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

    oh alright thats fine 1st) distribute parentheses by outside term

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

    \[\huge\rm 9r\color{blue}{-2}(r+3)=\color{ReD}{5}(3r-4)-26\] distribute (3r-4) by 5 and distribute (r+3) by -2

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

    familiar with the distributive property ?

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

    9r-2r-6=15r-20--26?

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

    nice combine like terms!

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

    it's -26

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

    7r-6=15r+(-46)?

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

    -6=8r+(-46)?

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

    right!

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

    now what?

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

    now move the numbers to the other side of the equal sign

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

    -46 to the left side then solve for r

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

    -40=8r r=-5

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

    you should take the variables term on one side and number to the opposite side

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

    nvm. that's right!

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

    so is -5 the answer

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

    wait a sec i have to check it1 more time

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

    i tried -5 and it said it was wrong so that cannot be right lol

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

    would you add or subtract 46 both sides ?

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

    it's already negative on the right side how would you cancel out -46 from right side ?

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

    i added 46 to each side

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

    yes right so -6+46= ???

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

    46 id greater than -6 so sign would be what as a final answer ?

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

    i got -40

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

    no

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

    -6+46 is -40

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

    no

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

    if bigger number is negative `then` answer would be negative -3+2=-1 3-2=1

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

    do you see the difference ?

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

    ok

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

    so 46 is greater than 6 right ?

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

    yeah

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

    yes so if 46 is positive answer would be positive when you subtract if 46 is negative then would be negative -46+6=-40 `but` 46-6=40

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

    ok yeah i made a typo on my calculator

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

    so 5?

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

    yes right

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

    you can check ur answer substitute x for 5 if you get equal sides then yes 5 is right !

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

    ok it was right, awesome

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

    i mean for r**

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

    thanks a ton

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

    yep:=) if you replaced r for -5 you wouldn't get the equal sides

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

    my pleasure!! :=)

  47. 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.