समीकरणों \(\frac{x}{2}+\frac{y}{3}=5\) और (x-y=3) का हल क्या है?
What is the solution of \(\frac{x}{2}+\frac{y}{3}=5\) and (x-y=3)?
Explanation opens after your attempt
A. \(x=\frac{36}{5},\ y=\frac{21}{5}\)
Concept
Multiplying the first equation by (6) gives (3x+2y=30). Using (x=y+3) gives \(y=\frac{21}{5}\) and \(x=\frac{36}{5}\).
Why this answer is correct
The correct answer is A. \(x=\frac{36}{5},\ y=\frac{21}{5}\). Multiplying the first equation by (6) gives (3x+2y=30). Using (x=y+3) gives \(y=\frac{21}{5}\) and \(x=\frac{36}{5}\).
Exam Tip
पहले समीकरण को (6) से गुणा करने पर (3x+2y=30) मिलता है। (x=y+3) रखने पर \(y=\frac{21}{5}\) और \(x=\frac{36}{5}\)।
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