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Math Help - linear equtions

  1. #1
    Newbie pianogurl1250's Avatar
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    Question linear equtions

    i have a quesion(obviously huh?)well it goes like this:

    1/3h-4=1/2(4h=8) i sort of unerstand this but i dont know how do to the fraction part.


    also theres this one that i think i did right but im not sure

    -9k=3(k-7)+3 i got the answer 3 is that right or???


    pls help
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  2. #2
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    Quote Originally Posted by pianogurl1250
    i have a quesion(obviously huh?)well it goes like this:

    1/3h-4=1/2(4h=8) i sort of unerstand this but i dont know how do to the fraction part.


    also theres this one that i think i did right but im not sure

    -9k=3(k-7)+3 i got the answer 3 is that right or???


    pls help
    What does (4h=8) means, if it's not typo.

    Second one is

    -9k = 3k-21+3
    -9k-3k =-18
    -12k=-18
    k=3/2
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  3. #3
    TD!
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    Quote Originally Posted by pianogurl1250
    also theres this one that i think i did right but im not sure

    -9k=3(k-7)+3 i got the answer 3 is that right or???
    I find the answer to be k = 3/2, perhaps you can show your work?

    Quote Originally Posted by pianogurl1250
    1/3h-4=1/2(4h=8) i sort of unerstand this but i dont know how do to the fraction part.
    Unfortunately, the question isn't clear. What's the "(4h=8)" doing there? And the fractions aren't clear either: try to write it by using brackets.
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