यदि (3x-5y=-1) और (2x+5y=21), तो (x) का मान क्या होगा?
If (3x-5y=-1) and (2x+5y=21), what will be the value of (x)?
Explanation opens after your attempt
B. (x=4)
Concept
Adding both equations gives (5x=20). Therefore (x=4).
Why this answer is correct
The correct answer is B. (x=4). Adding both equations gives (5x=20). Therefore (x=4).
Exam Tip
दोनों समीकरण जोड़ने पर (5x=20) मिलता है। इसलिए (x=4)।
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