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At which point do the lines \(2x+7y=31\) and \(x-y=1\) meet?रेखाएँ \(2x+7y=31\) और \(x-y=1\) किस बिंदु पर मिलती हैं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Point \(\left(\frac{38}{9},\frac{29}{9}\right)\)बिंदु \(\left(\frac{38}{9},\frac{29}{9}\right)\)
From \(x-y=1\), \(x=y+1\), and substituting in the first equation gives \(9y=29\). Hence \(y=\frac{29}{9}\) and \(x=\frac{38}{9}\).\(x-y=1\) से \(x=y+1\), और पहले समीकरण में रखने पर \(9y=29\)। इसलिए \(y=\frac{29}{9}\) और \(x=\frac{38}{9}\) है।
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