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Which point lies on both lines \(3x+y=14\) and \(x-2y=-5\)?कौन सा बिंदु दोनों रेखाओं \(3x+y=14\) और \(x-2y=-5\) पर स्थित है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((3,5))((3,5))
Substituting ((3,5)) gives \(3x+y=14\) but \(x-2y=-7\), so it is not correct; the true common point is \(\left(\frac{23}{7},\frac{29}{7}\right)\). Detecting option errors is also important.((3,5)) रखने पर \(3x+y=14\) और \(x-2y=-7\), इसलिए यह नहीं; सही साझा बिंदु \(\left(\frac{23}{7},\frac{29}{7}\right)\) है। विकल्पों की जांच में गलती पकड़ना भी महत्वपूर्ण है।
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