Question : Simplify the given expression: $b + 2a - [(3b + a) - (2a + b) + 2a] - a$
Option 1: $-a$
Option 2: $b$
Option 3: $-b$
Option 4: $a$
Answer (1)
22nd Jan, 2024
Correct Answer: $-b$
Solution :
Given expression,
$b + 2a - [(3b + a) - (2a + b) + 2a] - a$
$= b + 2a - [3b + a - 2a - b + 2a] - a$
$= b + 2a - a - 2b - a$
$= - b$
Hence, the correct answer is $-b$.
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