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anonymous

  • 5 years ago

who can help explain how to solve this problem for me... 5(31/16)+3y=-11

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  1. anonymous
    • 5 years ago
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    ok first think you are going to want to do is clear the fraction because, well lets face it nobody likes them.

  2. anonymous
    • 5 years ago
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    how do i do that?

  3. anonymous
    • 5 years ago
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    to do this you are going to multiply everything by 16 so that you end up with \[31+48y=-176\] no we have a much easier number to work with

  4. anonymous
    • 5 years ago
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    the next step is to get your varibles on one side and constants on the other

  5. anonymous
    • 5 years ago
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    ok

  6. anonymous
    • 5 years ago
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    retype in the equation please

  7. anonymous
    • 5 years ago
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    48y=-176-31?

  8. anonymous
    • 5 years ago
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    was the first number 5 and 31/16 ?

  9. anonymous
    • 5 years ago
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    5 times 31/15

  10. anonymous
    • 5 years ago
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    ok thats going to change up the numbers a bit

  11. anonymous
    • 5 years ago
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    oh ok

  12. anonymous
    • 5 years ago
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    if you can please explain to me i have finals next week and a exam friday i want to really understand this!

  13. anonymous
    • 5 years ago
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    but then you after you have transposed your constants and vvaribles you divide both sides by the coeficent of the varible to get your answer

  14. anonymous
    • 5 years ago
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    im really confused now?

  15. anonymous
    • 5 years ago
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    hello?

  16. anonymous
    • 5 years ago
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    x=-331/48 try to simplify

  17. anonymous
    • 5 years ago
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    how did you get that?

  18. anonymous
    • 5 years ago
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    5(31/16)+3y=-11 => 155+48y=-176 =>48y=-176-155 => 48y=-331 => y=-331/48

  19. anonymous
    • 5 years ago
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    ok let me see if i get it right

  20. anonymous
    • 5 years ago
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    it didnt come out right i think i did it wrong

  21. anonymous
    • 5 years ago
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    it said to solve using the elimination method and it gave me 2 diffrent problems

  22. anonymous
    • 5 years ago
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    5x+3y=-11 7x-2y=19 solve using elimination method

  23. anonymous
    • 5 years ago
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    can u help me with this?

  24. anonymous
    • 5 years ago
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    multiply the top function by 2 and the bottom function by 3 and tell me what you get

  25. anonymous
    • 5 years ago
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    10x+6y=-22 21x-6y=38

  26. anonymous
    • 5 years ago
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    then i would get 31x=16

  27. anonymous
    • 5 years ago
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    ok now you are going to combine the top and bottom function, and yes

  28. anonymous
    • 5 years ago
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    so then i would get x= 31/16

  29. anonymous
    • 5 years ago
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    after that i dont know what to do

  30. anonymous
    • 5 years ago
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    it would be 16/31

  31. anonymous
    • 5 years ago
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    sub that in for your x value inorder to get your y value

  32. anonymous
    • 5 years ago
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    so i would do 5(31/16)+3y=-11

  33. anonymous
    • 5 years ago
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    5 times 31/16

  34. anonymous
    • 5 years ago
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    yea

  35. anonymous
    • 5 years ago
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    and u said y=-331/48

  36. anonymous
    • 5 years ago
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    and we just did that problem

  37. anonymous
    • 5 years ago
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    and when i put it in my homework it said that was wrong

  38. anonymous
    • 5 years ago
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    hmmm...

  39. anonymous
    • 5 years ago
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    i put (31/16,-331/48)

  40. anonymous
    • 5 years ago
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    as the two points

  41. anonymous
    • 5 years ago
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    did you normally enter them in as improper fractions or mixed numbers?

  42. anonymous
    • 5 years ago
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    it said the correct answer was (35/31,172/31)

  43. anonymous
    • 5 years ago
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    and i dont understand how they get that answer?!

  44. anonymous
    • 5 years ago
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    I don't either i am sorry i couldn't help

  45. anonymous
    • 5 years ago
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    its ok thanks anyway :)

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