समीकरणों (4x+9y=71) और (5x-3y=8) से (y) का मान क्या है?
What is the value of (y) from (4x+9y=71) and (5x-3y=8)?
Explanation opens after your attempt
B. \(y=\frac{17}{3}\)
Concept
Multiply the second equation by (3) and add the first. (x=5), then (4(5)+9y=71) gives \(y=\frac{17}{3}\).
Why this answer is correct
The correct answer is B. \(y=\frac{17}{3}\). Multiply the second equation by (3) and add the first. (x=5), then (4(5)+9y=71) gives \(y=\frac{17}{3}\).
Exam Tip
दूसरे समीकरण को (3) से गुणा कर पहले से जोड़ें। (x=5), फिर (4(5)+9y=71) से \(y=\frac{17}{3}\)।
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