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