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15-(((8*x)/6)*x)-11 = 7-(((4*x)/3)*x)-5 // - 7-(((4*x)/3)*x)-5
((4*x)/3)*x-(((8*x)/6)*x)-11-7+5+15 = 0
(-4/3)*x^2+((4*x)/3)*x-11-7+5+15 = 0
2 = 0
x belongs to the empty set
x belongs to the empty set
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