किस विकल्प में (2x-3y) और (-5x+7y) का योग सही है?
Which option gives the correct sum of (2x-3y) and (-5x+7y)?
Explanation opens after your attempt
A. (-3x+4y)
Concept
The sum is ((2x-3y)+(-5x+7y)=-3x+4y). Add (x) and (y) terms separately.
Why this answer is correct
The correct answer is A. (-3x+4y). The sum is ((2x-3y)+(-5x+7y)=-3x+4y). Add (x) and (y) terms separately.
Exam Tip
योग ((2x-3y)+(-5x+7y)=-3x+4y) है। (x) और (y) पदों को अलग-अलग जोड़ें।
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