SOLUTION: Rewrite the expression without absolute value bars. ll-1l-l-8ll l= absolute value bars

Question 245850: Rewrite the expression without absolute value bars.

ll-1l-l-8ll

l= absolute value bars
Found 3 solutions by dabanfield, jsmallt9, College Student:
Answer by dabanfield(803)   (Show Source): You can put this solution on YOUR website!
||-11-1-8|| = ||-20|| = |20| = 20
Answer by jsmallt9(3758)   (Show Source): You can put this solution on YOUR website!
The vertical bars not only indicate absolute value but they also function as grouping symbols (like parentheses). So just like with parentheses we simplify from the inside out:

Since and this simplifies to:

and 1 -8 = -7:

which equals
7
Answer by College Student(505)   (Show Source): You can put this solution on YOUR website!
I can't tell when you are using 1 as an absolute value and when you're using it as a number.
So, I would say to first replace the absolute value symbol |x| for parenthesis and let the inside figure be a positive number.
Then express them without the parenthesis.
Remember to preserve negative signs that are between two sets of absolute values because those do not change to positive.
Notice I said "between two sets", not "within a set". Some examples:
.
|-x|-|-x| would equal to (x)-(x) and equal to x-x.
.
|x|-|x| would also equal to (x)-(x) and x-x.
.
|x|+|-x| would equalt to (x)+(x) and x+x.
.
|-x|+|x| would equalt to (x)+(x) and x+x.
.
.
PS. Next time please use shift + the third key to the right of letter "P" on your keyboard when expressing absolute values.
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