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anonymous

  • one year ago

I did this problem already, but have a question 15x-12 - (4x +9) - 8

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  1. anonymous
    • one year ago
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    This is how i did it : (15x - 4x) - ( 12 + 9 -8 ) 11x - 29 is supposed to be the correct answer.

  2. midhun.madhu1987
    • one year ago
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    15x - 12 - (4x +9) - 8 15x - 12 - 4x - 9 - 8 (15x - 4x) - 12 -9 -8 11x - 29

  3. welshfella
    • one year ago
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    where you have parentheses work these out first as midhun did above

  4. welshfella
    • one year ago
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    are you familiar with PEDMAS - which helps you remember the order of operations

  5. anonymous
    • one year ago
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    Yes i do

  6. phi
    • one year ago
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    if you can, figure out how you got - ( 12 + 9 -8 ) and don't do that again. In other words, you have a "bug" in your thinking. what is it ?

  7. welshfella
    • one year ago
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    the first operation is to distribute the negative over the parentheses

  8. welshfella
    • one year ago
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    -(4x + 9) = -4x - 9

  9. anonymous
    • one year ago
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    Makes sense now.. lol

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