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xy=6 x=6/y

x+y=-91

6/y+y=-91

(6+y2)/y=-91

6+y2=-91y

y2+91y+6=0

From the qudratic equation: y = (-91 +/- sqrt(8257))/2

y ~= -0.065982 or y ~= -90.934019

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15y ago

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