Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Panda223RulerZ

  • 2 years ago

- 1/2 x + 2 = x + 7 I still dont understand how to do it

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

    how to do what?

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

    whats the question?

  3. Panda223RulerZ
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    - 1/2 x + 2 = x + 7

  4. robert1
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x==-10/3

  5. Panda223RulerZ
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    How did you get to that answer?

  6. Panda223RulerZ
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I want to learn it, not just get answers haha

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

    Follow the "golden rule" of algebra. Thou shalt do to one side of the equal sign as thou do to the other side.

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

    In this case subtract x. You now have -1.5x + 2 = 7 Do you see why?

  9. Panda223RulerZ
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yeah

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

    Continuing, now subtract 2. You now have: -1.5x= 5 Again did you follow?

  11. jiteshmeghwal9
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\Huge{\frac{1}{2}x+2=x+7}\]\[\Huge{\frac{x+2}{2}=\frac{x+7}{1}}\]By cross multiplication we have,\[\Huge{(x+2)=2(x+7)}\]Solve this for \(x\).

  12. Panda223RulerZ
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes

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

    I think you are on track. We only now have to do is divide by -1.5 We now have x = -(5/1.5) Using calculator divide 5 by 1.5 and prefix the minus sign.

  14. jiteshmeghwal9
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352384148089:dw|

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

    This gives an odd ball answer of 3.33333

  16. jiteshmeghwal9
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    After getting the value u just need t put minus before the digit :)

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

    or I should say -3.333 but it needs to be checked out by substituting it in the original problem to be sure we have not erred. To err is human.

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

    The original equation was: - 1/2 x + 2 = x + 7 lets call the answer -3 1/3 and substitute it in the original. we would have: -1/2 (-3 1/3) +2 = -3 1/3 + 7 (-1/2)(-10/3) + 2= 3 2/3 10/6 + 2 = 3 2/3 5/3 + 2 = 3 2/3 3 2/3 = 3 2/3 verified!

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

    Did following that help, just remember the golden rule and you won't unbalance the equation. When you unbalance the equation it will result in an incorrect answer.

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

    This is my input for this morning. Good luck with your studies.

  21. Panda223RulerZ
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you so much, and thank you for serving in the Army(:

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

    No problem and as I saId good luck with your studies. Don't be discouraged when faced with a difficult problem, accept the challenge and try and solve.

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

    Oh yes, your flag does not offend me.

  24. 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.