समीकरणों (4x-3y=7) और (5x+6y=44) से (x+y) का मान क्या है?
What is the value of (x+y) from (4x-3y=7) and (5x+6y=44)?
Explanation opens after your attempt
A. \(x+y=\frac{105}{13}\)
Concept
Multiply the first equation by (2) and add the second. \(x=\frac{58}{13}\) and \(y=\frac{47}{13}\), so \(x+y=\frac{105}{13}\).
Why this answer is correct
The correct answer is A. \(x+y=\frac{105}{13}\). Multiply the first equation by (2) and add the second. \(x=\frac{58}{13}\) and \(y=\frac{47}{13}\), so \(x+y=\frac{105}{13}\).
Exam Tip
पहले समीकरण को (2) से गुणा कर दूसरे से जोड़ें। \(x=\frac{58}{13}\) और \(y=\frac{47}{13}\), अतः \(x+y=\frac{105}{13}\)।
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