A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

The work of a student to solve the equation 2(3x − 4) = 8 + 2x + 4 is shown below: Step 1: 2(3x − 4) = 8 + 2x + 4 Step 2: 5x − 6 = 12 + 2x Step 3: 5x − 2x = 12 + 6 Step 4: 3x = 18 Step 5: x = 6 In which step did the student first make an error and what is the correct step? Step 2; 6x − 6 = 2(6 + x + 2) Step 2; 6x − 8 = 12 + 2x Step 3; 5x − 2x = 12 − 6 Step 3; 5x + 2x = 12 + 6

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

    please help me

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

    Step 1: 2(3x − 4) = 8 + 2x + 4 Step 2: 5x − 6 = 12 + 2x Step 3: 5x − 2x = 12 + 6 Step 4: 3x = 18 Step 5: x = 6

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

    The work of a student to solve the equation 2(3x − 4) = 8 + 2x + 4 is shown below: Step 1: 2(3x − 4) = 8 + 2x + 4 Step 2: 5x − 6 = 12 + 2x Step 3: 5x − 2x = 12 + 6 Step 4: 3x = 18 Step 5: x = 6 In which step did the student first make an error and what is the correct step? Step 2; 6x − 6 = 2(6 + x + 2) Step 2; 6x − 8 = 12 + 2x Step 3; 5x − 2x = 12 − 6 Step 3; 5x + 2x = 12 + 6

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

    2(3x-4)=8+2x+4 6x-8=12+2x 6x-2x=12+8 4x=20 x=20/4 x=5 this is how this question shd be worked...

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

    thanks can you help me with another

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

    sure

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

    Which of these is a simplified form of the equation 6y + 4 = 8 + 2y + 2y? 6y = 8 10y = 12 2y = 4 4y = 12

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

    6y+4=8+2y+2y 6y+4=8+4y 6y-4y=8-4 2y=4 y=4/2 y=2

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

    can u see it??

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

    check the working i just did and look for the answer

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

    correct

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

    thanksss can u help with more

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

    sure

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

    How many solutions does the equation −3a + 3a + 6 = 7 have? One Two Infinitely many None

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

    -3a+3a=0 so none

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

    What is the solution to the equation 1.6m − 4.8 = −1.6m? m = 0.5 m = 0.7 m = 1.5 m = 3

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

    the a term cancel out each other

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

    1.6m-4.8=-1.6m 1.6m+1.6m=4.8 3.2m=4.8 m=4.8/3.2 m=1.5

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

    wowww ur amazing

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

    would i be pushing it if i ask for more help?

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

    nah

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

    What is the value of x in the equation −6 + x = −3? −9 −3 3 9

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

    aye u got insta?

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

    -6+x=-3 x=-3+6 x=3

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

    What is the value of x in the equation −x = 4 − 3x + 6? 5 10 −5 −10

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

    Which statement is true about the equation fraction 3 over 4z = fraction 1 over 4z − 3 + 5? It has no solution. It has one solution It has two solutions. It has infinitely many solutions.

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

    -x=4-3x+6 -x=10-3x -x+3x=10 2x=10 x=5

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

    so D?

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

    What is the value of x in the equation −x = 4 − 3x + 6? x=5

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

    \[\frac{ 3 }{ 4z }=\frac{ 1 }{ 4z }-3+5 \] is this the correct question/equation

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

    How many solutions does the equation 6a − 3a − 6 = −2 + 3 have? Two None One Infinitely many

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

    im talking about this question we havent started as yet What is the value of x in the equation −x = 4 − 3x + 6? It has no solution. It has one solution It has two solutions. It has infinitely many solutions.

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

    so this was the question Which statement is true about the equation fraction 3 over 4z = fraction 1 over 4z − 3 + 5?

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

    we havent started the above question as yet

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

    but for this question How many solutions does the equation 6a − 3a − 6 = −2 + 3 have? the answer is one

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

    thxs

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

    What is the value of z in the equation 2(4z − 3 − 1) = 166 − 46? 14 15 16 17

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

    2(4z-3-1)=166-46 8z-6-2=120 8z=120+8 z=16

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

    hey can u help with more

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

    ok 3more but you have to look at the pattern of my solution when it comes to solving equation ok

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

    k thxs

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

    How many solutions does the equation −3y + 3y + 4 = 4 have? Zero Infinitely many One Four

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

    -3y+3y+4=4 and -3y+3y=0 so no solution

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

    The student committed an error on Step 2 because instead of multiplying 2 to 3x the student ended up adding the two, getting 5x. Correct step is 6x-8 = 12x + 2x

  45. 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.