y - [y - {y - (y + 1)}]=?

A - 1

C 1

D 2

Solution

Correct Answer: Option A

y - [y - {y - (y + 1)}]
= y - [y - {y - y - 1}]
= y - [y - { - 1}]
= y - [y + 1]
= y - y - 1
= - 1

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