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14 September, 10:00

6x+5y=120, 7x+11y=202 solve for x and y

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  1. 14 September, 10:21
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    6x=120-5y - > x=20-5/6*y - > 7 (20-5/6*y) + 11y = 202 - > 140-35/6*y + 11y = 202 - > 140+31/6*y=202 - > 31/6*y = 62 - > y = 12.
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