x - {a + (y - b)} কে সরল করুন?

A x-y-a-b

B x+y+a-b

C x-y+a-b

D x-y-a+b

Solution

Correct Answer: Option D

x - {a + (y - b)}
= x - {a + y - b}
= x - a - y + b
= x - y - a + b

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