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7x-2y=5xy, 8x+7y=15xy. Solve the linear pair of equation. |
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Answer» {tex}\\begin{array}{l}7x-2y=5xy\\;\\;----(1)\\\\8x+7y=15xy\\;----(2)\\\\from\\;1)\\;and\\;(2)\\\\8x+7y=3(7x-2y)\\\\8x+7y=21x\\;-6y\\\\13y\\;=13x\\;so\\;x=y\\\\Now\\;from(1)\\\\7x-2x=5x^{2\\;}\\;or\\;\\;5x=5x^2\\\\x=1\\;hence\\;y=1\\\\\\\\\\\\\\end{array}{/tex} Sorry, x=1 and y=1 X=1 and y=2 |
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