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Homework Help: Simplifying 4[12-3(8-5)]-1

  1. Jan 7, 2010 #1
    1. The problem statement, all variables and given/known data
    simplify 4[12-3(8-5)]-1

    and simplify 5x-3{2x-2[x-2(1-x)]}


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jan 7, 2010 #2
    Re: simplifications

    The attempt at a solution, please.
     
  4. Jan 7, 2010 #3
    Re: simplifications

    I havent reviewed any algebra for years so I dont remeber how could this be simplified.

    what i tried was

    in 4[12-3(8-5)]-1 I just tried to sovle 4[ 9(3)]-1 = 4[27]-1 = 4 [26] = 104
    but I guess thats not what i was told to do.
     
  5. Jan 7, 2010 #4

    Mark44

    Staff: Mentor

    Re: simplifications

    The first one is just arithmetic - not algebra.

    4[12 - 3(8 - 5)] - 1

    Take care of the operations inside of parentheses or brackets first, then multiplications, and finally additions/subtractions.

    In particular 12 - 3(8 -5) is not equal to 9(8 - 5).

    Keep the same ideas in mind for the second problem.
     
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