समीकरणों (4x+3y=50) और (2x-5y=-6) को हल करने पर (y) का मान क्या है?

On solving (4x+3y=50) and (2x-5y=-6), what is the value of (y)?

Explanation opens after your attempt
Correct Answer

D. \(y=\frac{62}{13}\)

Step 1

Concept

Use \(x=\frac{5y-6}{2}\) from the second equation. Substitution gives (13y=62), so \(y=\frac{62}{13}\).

Step 2

Why this answer is correct

The correct answer is D. \(y=\frac{62}{13}\). Use \(x=\frac{5y-6}{2}\) from the second equation. Substitution gives (13y=62), so \(y=\frac{62}{13}\).

Step 3

Exam Tip

दूसरे समीकरण से \(x=\frac{5y-6}{2}\) रखें। पहले में रखने पर (13y=62), इसलिए \(y=\frac{62}{13}\)।

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समीकरणों (4x+3y=50) और (2x-5y=-6) को हल करने पर (y) का मान क्या है? / On solving (4x+3y=50) and (2x-5y=-6), what is the value of (y)?

Correct Answer: D. \(y=\frac{62}{13}\). Explanation: दूसरे समीकरण से \(x=\frac{5y-6}{2}\) रखें। पहले में रखने पर (13y=62), इसलिए \(y=\frac{62}{13}\)। / Use \(x=\frac{5y-6}{2}\) from the second equation. Substitution gives (13y=62), so \(y=\frac{62}{13}\).

Which concept should I revise for this Mathematics MCQ?

Use \(x=\frac{5y-6}{2}\) from the second equation. Substitution gives (13y=62), so \(y=\frac{62}{13}\).

What exam hint can help solve this Mathematics question?

दूसरे समीकरण से \(x=\frac{5y-6}{2}\) रखें। पहले में रखने पर (13y=62), इसलिए \(y=\frac{62}{13}\)।