किस विकल्प में (4a-5b+9a-2b-6a) का सही सरल रूप है?
Which option gives the correct simplified form of (4a-5b+9a-2b-6a)?
Explanation opens after your attempt
A. (7a-7b)
Concept
(4a+9a-6a=7a) and (-5b-2b=-7b). Combine only terms with the same variable.
Why this answer is correct
The correct answer is A. (7a-7b). (4a+9a-6a=7a) and (-5b-2b=-7b). Combine only terms with the same variable.
Exam Tip
(4a+9a-6a=7a) और (-5b-2b=-7b)। समान चर वाले पद ही जोड़ें।
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