The value of 1-[1-1-(1-1+x)] on simplifying is

2-x

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1+x

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1-x

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2+x

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Solution

The correct option is B 1+x
$1 - [1 - 1 - (1 - 1 + x)] = 1 - [1 - 1 - (x)] = 1 - [1 - 1 - x] = 1 - 1 + 1 + x = 1 + x$

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