समीकरण (2x-3y=1) और (x+y=7) के लिए सही हल कौन-सा है?

Which is the correct solution for (2x-3y=1) and (x+y=7)?

Explanation opens after your attempt
Correct Answer

A. बिंदु (\left\(\frac{22}{5},\frac{13}{5}\right\))Point (\left\(\frac{22}{5},\frac{13}{5}\right\))

Step 1

Concept

Using (y=7-x) from (x+y=7), we get (2x-3\left\(7-x\right\)=1). Thus \(x=\frac{22}{5}\) and \(y=\frac{13}{5}\).

Step 2

Why this answer is correct

The correct answer is A. बिंदु (\left\(\frac{22}{5},\frac{13}{5}\right\)) / Point (\left\(\frac{22}{5},\frac{13}{5}\right\)). Using (y=7-x) from (x+y=7), we get (2x-3\left\(7-x\right\)=1). Thus \(x=\frac{22}{5}\) and \(y=\frac{13}{5}\).

Step 3

Exam Tip

(x+y=7) से (y=7-x) रखकर (2x-3\left\(7-x\right\)=1) मिलता है। इससे \(x=\frac{22}{5}\) और \(y=\frac{13}{5}\) है।

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Mathematics Answer, Explanation and Revision Hints

समीकरण (2x-3y=1) और (x+y=7) के लिए सही हल कौन-सा है? / Which is the correct solution for (2x-3y=1) and (x+y=7)?

Correct Answer: A. बिंदु (\left\(\frac{22}{5},\frac{13}{5}\right\)) / Point (\left\(\frac{22}{5},\frac{13}{5}\right\)). Explanation: (x+y=7) से (y=7-x) रखकर (2x-3\left\(7-x\right\)=1) मिलता है। इससे \(x=\frac{22}{5}\) और \(y=\frac{13}{5}\) है। / Using (y=7-x) from (x+y=7), we get (2x-3\left\(7-x\right\)=1). Thus \(x=\frac{22}{5}\) and \(y=\frac{13}{5}\).

Which concept should I revise for this Mathematics MCQ?

Using (y=7-x) from (x+y=7), we get (2x-3\left\(7-x\right\)=1). Thus \(x=\frac{22}{5}\) and \(y=\frac{13}{5}\).

What exam hint can help solve this Mathematics question?

(x+y=7) से (y=7-x) रखकर (2x-3\left\(7-x\right\)=1) मिलता है। इससे \(x=\frac{22}{5}\) और \(y=\frac{13}{5}\) है।