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b*((7*b-(6*y))/4)-(b*((3*b-(11*y))/4)) = 0
b*((7*b-6*y)/4)-(b*((3*b-11*y)/4)) = 0
(b*(7*b-6*y))/4+(-1*b*(3*b-11*y))/4 = 0
b*(7*b-6*y)-1*b*(3*b-11*y) = 0
4*b^2+5*b*y = 0
(4*b^2+5*b*y)/4 = 0
(4*b^2+5*b*y)/4 = 0 // * 4
4*b^2+5*b*y = 0
x belongs to the empty set
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