Question 1

Simplify: $$b-[b-(a+b)-b-(b-a-b)+2b]$$

Solution

Expression : $$b-[b-(a+b)-b-(b-a-b)+2b]$$

= $$b-[(b-a-b)+(-b-b+a+b)+2b]$$

= $$b-[-a-b+a+2b]$$

= $$b-b=0$$

=> Ans - (C)

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