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Jravenv

  • one year ago

Help best answer will be awarded. Screencap in comments.

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  1. Jravenv
    • one year ago
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  2. anonymous
    • one year ago
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    |dw:1433790548235:dw|

  3. anonymous
    • one year ago
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    Maybe that can get you started!

  4. Jravenv
    • one year ago
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    Can you help me break it down? the formatting of these just makes my brain shut down.

  5. anonymous
    • one year ago
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    Well you have so many fractions so it's a good idea to start getting rid of those first. What I did in the picture is multiply the whole thing by (2/1)/(2/1) which is the same as multiplying it by 1.. which wouldn't change the values but it will get rid of the fractions!

  6. anonymous
    • one year ago
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    So I decided to get rid of that 2 in the denominator, and in order to do that you need to multiply it by a 2

  7. Jravenv
    • one year ago
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    So like top and bottom or just multiply it to leave the y

  8. anonymous
    • one year ago
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    well lets look at the bottom first. (y/2) * (2/1) = 2y/2 = y

  9. anonymous
    • one year ago
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    so maybe try multiplying out that equation I drew up there

  10. Jravenv
    • one year ago
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    3+ 2/6y?

  11. anonymous
    • one year ago
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    |dw:1433791054094:dw|

  12. anonymous
    • one year ago
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    Not quite, keep in mind that you need to multiply that 2 by both terms!

  13. Jravenv
    • one year ago
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    6+2/6y ?

  14. anonymous
    • one year ago
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    yes but remember there is also the y/2 in the denominator

  15. Jravenv
    • one year ago
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    So I put the y/2 under it

  16. Jravenv
    • one year ago
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    What's the next step?

  17. anonymous
    • one year ago
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    But you haven't multiplied the (2/1) by the (y/2) yet!

  18. Jravenv
    • one year ago
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    2y/2?

  19. anonymous
    • one year ago
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    Yup. and what would that simpify to?

  20. Jravenv
    • one year ago
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    y

  21. anonymous
    • one year ago
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    Great. So now write out the new the equation that we have.

  22. Jravenv
    • one year ago
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    |dw:1433791502822:dw|

  23. anonymous
    • one year ago
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    So try and clear that fraction on the top with the 6y using the same method I used to clear the bottom fraction.

  24. Jravenv
    • one year ago
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    How do you mean?

  25. anonymous
    • one year ago
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    Well everything we have done led us to getting rid of that fraction on the bottom (y/2) so now it just says y. We want to do that same thing for the 2/(6y) in the denominator. How do you think we could get rid of the fraction?

  26. Jravenv
    • one year ago
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    divide the 2/6y and the y?

  27. anonymous
    • one year ago
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    Well remember if you do something like divide or multiply one of the terms, you need to do that same thing to EVERYTHING else in the equation, otherwise you would be changing it!

  28. Jravenv
    • one year ago
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    so divide the denominator by the numerator?

  29. anonymous
    • one year ago
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    I'm not quite sure what you mean.

  30. Jravenv
    • one year ago
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    y by the top of the fraction?

  31. anonymous
    • one year ago
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    We want to clear that fraction in the numerator. So we need to multiply the entire fraction by something that will clear that fraction.

  32. anonymous
    • one year ago
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    what will get rid of the 6y in the 2/(6y)?

  33. Jravenv
    • one year ago
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    multiply times 3?

  34. anonymous
    • one year ago
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    |dw:1433791955899:dw|

  35. anonymous
    • one year ago
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    You're almost there, but we still have a fraction left

  36. Jravenv
    • one year ago
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    4?

  37. anonymous
    • one year ago
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    What about 4?

  38. anonymous
    • one year ago
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    That is a y if it is not clear in the drawing

  39. Jravenv
    • one year ago
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    so would I multiply by 3y? I don't know I'm a little lost

  40. anonymous
    • one year ago
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    Well try it out! |dw:1433792117437:dw|

  41. Jravenv
    • one year ago
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    So it's 1? xD

  42. anonymous
    • one year ago
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    Well that one term is.. which is good because it means we no longer have a bunch of fractions in the numerator and denominator. Just remember if you multiply one term by something, you need to multiply everything else by that same thing. So do that now.

  43. Jravenv
    • one year ago
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    I'm confused :/

  44. anonymous
    • one year ago
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    I think it would help if you always write out the full equation so that you don't accidentally skip steps.

  45. anonymous
    • one year ago
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    |dw:1433792424478:dw|

  46. anonymous
    • one year ago
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    What are you going to multiply this by to clear that 2/6y fraction?

  47. anonymous
    • one year ago
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    If the whole 'multiply all terms by the same thing' thing is confusing, think about it like this. 1 + 1 = 2 I can multiply everything in that by 3 to get (1)(3) + (1)(3) = (2)(3) 3 + 3 = 6 Which is correct! But I CANNOT just multiply one of the terms by 3 as you will see: 1 + 1 = 2 (1)(3) + 1 = 2 3 + 1 = 2 Well that's obviously wrong! So nee the apply this same thinking to the question we are dealing with.

  48. Jravenv
    • one year ago
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    Ohh okay.

  49. anonymous
    • one year ago
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    So you discovered that multiplying 2/6y by 3/y clears that fraction. You just need to remember to multiply everything in the equation by that as well otherwise you are changing the equation into something entirely new.

  50. Jravenv
    • one year ago
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    Ahh, yeah. okay.

  51. anonymous
    • one year ago
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    So do you know what step to do next?

  52. Jravenv
    • one year ago
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    No, I feel so dumb.

  53. anonymous
    • one year ago
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    Don't feel dumb. Honestly this stuff is very tricky to get. I am talking calculus 2 right now and SO many people struggle with this algebra stuff. You can even look in the calc section of this site and see that the main thing people are finding tough is the algebra! It just takes time and a lot of practice.

  54. anonymous
    • one year ago
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    |dw:1433793417267:dw| So this is where we are at now.

  55. Jravenv
    • one year ago
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    What do I have to do?

  56. anonymous
    • one year ago
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    Well multiplying out what I drew would be good.

  57. anonymous
    • one year ago
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    Because you discovered that when you multiply it by 3y it will clear the fraction.

  58. Jravenv
    • one year ago
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    so the top would be 18 + 1?

  59. anonymous
    • one year ago
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    Sounds good but what about the entire equation?

  60. anonymous
    • one year ago
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    Also I think you are missing a y in the numerator

  61. Jravenv
    • one year ago
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    |dw:1433794021102:dw|

  62. anonymous
    • one year ago
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    :)

  63. Jravenv
    • one year ago
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    Thank you so much, you're sincerely the most helpful person that has come around, it might be a slow process but you didn't call me dumb or give up on me. I'm very thankful

  64. anonymous
    • one year ago
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    No worries! Glad I could help. The main thing to do with these questions is to see what you need to multiply the fractions by in order to clear them. Then once you have that figured out, multiply the WHOLE equation by that thing. Everything else will fall into place ^^

  65. Jravenv
    • one year ago
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    Thank you :3 I'll remember that.

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