A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

linear equation 5a+11=a-13

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

    @LegendarySadist @peachpi

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

    So are we solving for a then?

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

    yes why do people keep saying that??

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

    Well it's always good to confirm what the OP is asking for. There are a lot of people on this site who ask their questions in a confusing way so I've just come to confirm at the start rather than later on lol

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

    kk

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

    Anyways, the way to go about solving this one would be to get all of the a values on one side and all of the number values on the other side.

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

    5a+a first right

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

    Well a is already positive on the right side, so to bring it over we would subtract it.

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

    In other words 5a-a

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

    you might think like this: how do I *get rid of a on the right side* ? answer: add -a but to keep things equal, you also add -a to the left side.

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

    ok but not just 4. it is 5 a's take away 1 a.

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

    open study whenever i get on its always acting wierd

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

    6a

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

    start over, and to it carefully 5a+11=a-13 add -a to both sides. what do you get? (and write out the whole equation)

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

    hold on one sec i need to draw it and it wont let me i'm going to refresh the page.

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

    |dw:1439758244788:dw|

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

    ok, except a+a is not 0 (it is 2a) try adding -a to both sides

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

    7a then.

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

    start over, 5a+11=a-13 add -a to both sides. Just write -a on both sides. can you do that ?

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

    can you show me the steps to the answer i already know the answer its -6

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

    of how you would you do it

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

    yes, we will get the answer. I would add -a to both sides. that means write -a on both sides can you try to do that ?

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

    can you show me in drawing of how the step would be?

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

    you write -a on both sides , like this 5a+11 -a =a-13 - a

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

    if we look just at the "a" part , on the right side you have 1a take away 1 a on the left side you have 5 a's take away 1 a

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

    so its 4a?

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

    can you write out the whole equation? start with 5a+11 -a =a-13 - a and simplify both sides. can you do that ?

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

    yea sure one sec.

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

    5a+-a=a-13a ? is that what i would do on the right side

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

    you start with 5a+11 -a =a+ -13 + -a you can switch the order of the right side (if you want) to 5a+11 -a =a+ -a + -13 what is a+ -a ?

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

    2a?

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

    what is 1+ -1 ?

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

    0

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

    and 2+ -2 or 3+ -3 or a+ -a always adds up to 0

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

    kk

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

    5a+11 -a =a+ -a + -13 the right side, a+ -a is 0 so you get 5a + 11 -a = 0 + -13 0 + -13 is -13 , right?

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

    yes

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

    so far we figured out 5a + 11 -a = -13 now look at the left side. it says 5 a's and 11 and take away 1 a we can simplify 5 a's take away 1 a.

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

    4a

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

    no sorry 6a

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

    ok, but try to get in the habit of writing the whole equation 5 a's take away 1 a is 4 a"s (we write it 4a) what is the whole equation?

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

    so it is 4a?

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

    yes. if you had 5 cows and took away 1 cow, how many cows would you have? it works the same for a's

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

    4a+11=-13

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

    notice if you could make the 11 "go away" you would have 4a by itself luckily we can make 11 go away. we add -11 and we have to add -11 to the other side to keep things equal write -11 on both sides.

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

    then subtract 11to both sides 24 so then it would be 4a=-24

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

    yes. if we do it this way: 4a+11+-11=-13+-11 then on the left we have 11+-11 which is 0 (just like a+-a is zero) and on the right side -13 + -11 is -24 so you have 4a = -24 the last step is to divide both sides by 4 \[ \frac{4a}{4} = \frac{-24}{4} \]

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

    it might not be obvious , by 4a/4 is just a

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

    -6 thanks

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

    a=-6

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

    yes. good job. if you do a bunch of these problems, it will start to make sense.

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

    thanks again. :)

  53. 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.