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What is the absolute value of -(-6.8)
Would it be -6.8 or -6.8?
I'm thinking it's 6.8

Imagine a number line. The absolute value is the distance from a given point to zero, right? Distance cannot be negative. Therefore, the distance from (-6.8) to zero is 6.8, but you have a negative sign outside that absolute value, which means that whatever answer you get, you have to change the sign. Therefore, -(-6.8) = -6.8.

did you mean │-(-6.8)│ ??

then the answer is 6.8


then it would be -6.8

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