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What is the value of (x+y) from (4x-3y=7) and (5x+6y=44)?समीकरणों (4x-3y=7) और (5x+6y=44) से (x+y) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (x+y=\frac{105}{13})(x+y=\frac{105}{13})
Multiply the first equation by (2) and add the second. (x=\frac{58}{13}) and (y=\frac{47}{13}), so (x+y=\frac{105}{13}).पहले समीकरण को (2) से गुणा कर दूसरे से जोड़ें। (x=\frac{58}{13}) और (y=\frac{47}{13}), अतः (x+y=\frac{105}{13})।
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