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If the graphical solution of (3x+y=14) and (x-y=2) is ((p,q)), what is (p-q)?यदि (3x+y=14) और (x-y=2) का ग्राफीय समाधान ((p,q)) है, तो (p-q) क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (2)(2)
The second equation directly gives (p-q=2). The intersection point satisfies both equations, so full solving is not always necessary.दूसरे समीकरण से सीधे (p-q=2) मिलता है। प्रतिच्छेद बिंदु दोनों समीकरणों को संतुष्ट करता है, इसलिए पूरा हल निकालना जरूरी नहीं।
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