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Math Help - linear equation problem

  1. #1
    Newbie brainfreeze's Avatar
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    linear equation problem

    hey all, im new to this forum, and im new to linear equations
    i was wondering if someone could help me out with this

    2c+5
    ____ = 7
    6

    how exactly do i go about working this out?
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  2. #2
    MHF Contributor
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    Quote Originally Posted by brainfreeze View Post
    hey all, im new to this forum, and im new to linear equations
    i was wondering if someone could help me out with this
    2c+5
    ____ = 7
    6
    how exactly do i go about working this out?
    Easier if you use / as division sign: (2c + 5) / 6 = 7

    Multiply by 6:
    2c + 5 = 42

    Can you finish it?
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  3. #3
    Newbie brainfreeze's Avatar
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    c = 18 right?
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  4. #4
    Newbie brainfreeze's Avatar
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    sorry to bother you again, but i keep getting stuck on this equation
    its another linear one

    2m+3 = m+4

    i keep getting m =

    i do it like this,

    2m+3=m+4
    2m=m+4-3
    2m=m+1
    m= 1/2
    i dont get it
    the answer sheet says the answer is 1
    what did i do wrong?!
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  5. #5
    MHF Contributor
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    Quote Originally Posted by brainfreeze View Post
    2m=m+1
    m= 1/2
    2m = m + 1
    2m - m = 1
    m = 1
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  6. #6
    Newbie brainfreeze's Avatar
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    thanks!!
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