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we need the absolute value rules...
Maybe this will help......http://www.mathsisfun.com/numbers/absolute-value.html
yes I was getting there, but it was a pain to Latex everything.
so anyway, a negative number inside the absolute value will become positive if we already have a positive number inside the absolute value then the result is positive.
Therefore its 13
Yay! it's 13!
good job :)
Lol! it wasn't my question I asked
x(... well keep the medal anyway ...my gift.
yeah its 13
yes it is 13. :)
The absolute value is just the distance away from 0 it is, so if its  its is 5 away, if its [-5] it is still 5 away. So its just the number missing the + and - signs
It's still 13 since it's no negative and there is nothing else in there that can possibly change the number.