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anonymous

  • one year ago

Solve for x: 4 over 5 x + 4 over 3 = 2x x = __________________ Write your answer as a fraction in simplest form. Use the "/" symbol for the fraction bar.

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  1. anonymous
    • one year ago
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    halp

  2. anonymous
    • one year ago
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    like this?\[\frac{ 4 }{ 5x } +\frac{ 4 }{ 3 } = 2x\]

  3. anonymous
    • one year ago
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    I guess, it says solve for x

  4. anonymous
    • one year ago
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    i know solve for x, but we need to get the equations right first

  5. anonymous
    • one year ago
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    oh right lol, sorry im like so out of it when it comes to math Its x=4/5 x + 4/3 = 2x

  6. anonymous
    • one year ago
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    the x is separate

  7. anonymous
    • one year ago
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    ok lets multiply by 3 on both sides to remove the denominator on the 4/3

  8. anonymous
    • one year ago
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    \[(3)\frac{ 4 }{ 5x } + (3) \frac{ 4 }{ 3 } = (3)2x\]

  9. anonymous
    • one year ago
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    2.4 x + 4 =6x is that right?

  10. anonymous
    • one year ago
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    where did you get the 2.4x?

  11. anonymous
    • one year ago
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    3 times 4/5

  12. anonymous
    • one year ago
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    its 3 times 4/5x

  13. anonymous
    • one year ago
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    12/5x you cant just pull the x out

  14. anonymous
    • one year ago
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    i told you that the x was separate though

  15. anonymous
    • one year ago
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    \[\frac{ 4 }{ 5 }x\]

  16. anonymous
    • one year ago
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    like this?

  17. anonymous
    • one year ago
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    ye

  18. anonymous
    • one year ago
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    \[2.4x + 4 = 2x\] now minus 2x from both sides

  19. anonymous
    • one year ago
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    0.4x + 2x

  20. anonymous
    • one year ago
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    or 0.4 + 2x = 2x

  21. anonymous
    • one year ago
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    \[2.4x + 4 -2x = 2x - 2x\]

  22. anonymous
    • one year ago
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    so would 2x -2x or just 2x be the answer..?

  23. anonymous
    • one year ago
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    solve that chunk first

  24. anonymous
    • one year ago
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    2x-2x is definitely 0

  25. anonymous
    • one year ago
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    XD ye ik i got 4.4?

  26. anonymous
    • one year ago
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    2.4x-2x =?

  27. anonymous
    • one year ago
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    well that would be 0.4 but i added the 4 cuz u said it up there

  28. anonymous
    • one year ago
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    its 2.4x + 4

  29. anonymous
    • one year ago
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    not 2.4x +4x

  30. anonymous
    • one year ago
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    you can't add the variables and the constants together

  31. anonymous
    • one year ago
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    ok then 6.4?

  32. UsukiDoll
    • one year ago
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    "you can't add the variables and the constants together " leave it as 2.4x + 4

  33. anonymous
    • one year ago
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    2.4x + 4

  34. anonymous
    • one year ago
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    2.4 is a coefficient not a constant term

  35. anonymous
    • one year ago
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    so we now have \[0.4x + 4 = 0\]

  36. anonymous
    • one year ago
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    so that would be the final answer?

  37. UsukiDoll
    • one year ago
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    ick decimals... I would multiply the whole equation by 10 and then solve for x

  38. anonymous
    • one year ago
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    yes multiply by 10

  39. UsukiDoll
    • one year ago
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    decimals are evil. we use multiplication to modify the equation and make life easier.

  40. anonymous
    • one year ago
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    hint: calculator doesn't care about decimals

  41. anonymous
    • one year ago
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    waddaya got?

  42. UsukiDoll
    • one year ago
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    ghostbusters.

  43. anonymous
    • one year ago
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    you seen the goat balls yet?

  44. UsukiDoll
    • one year ago
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    ya ._,

  45. anonymous
    • one year ago
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    lel

  46. anonymous
    • one year ago
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    Um...so the answer is..0.4x + 4 = 0 also, goat...wtf...

  47. anonymous
    • one year ago
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    correct?

  48. UsukiDoll
    • one year ago
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    gotta solve for x =_= that's just an equation

  49. anonymous
    • one year ago
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    thats not your final answer

  50. anonymous
    • one year ago
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    show it to him if he didn't finish it in 10mins

  51. UsukiDoll
    • one year ago
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    k/

  52. UsukiDoll
    • one year ago
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    so first we multiply the entire equation by 10 because dealing with decimals (especially by hand) is torture 0.4x + 4 = 0 (10)(0.4x)+4(10)=0(10) 4x+40=0 now we need x by itself. We don't want that 40 on the left side, so subtract 40 on both sides finally divide both sides by 4

  53. anonymous
    • one year ago
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    \[4x + 40 =0\]\[x + 10 -10 = 0 - 10\]

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