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Find the value of the following expression:

| |-|-1 + 1| - 1| + 1|.

 Feb 20, 2018
 #1
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+1

Start in the middle and work your way outward

|-1+1| = 0

|-0-1| =  |-1|=1

|1+1|=2

 Feb 20, 2018

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