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0.5*(6*x-3) = (1/2)*(6*x+6) // - (1/2)*(6*x+6)
0.5*(6*x-3)-((1/2)*(6*x+6)) = 0
0.5*(6*x-3)+(-1/2)*(6*x+6) = 0
0.5*(6*x-3)-1/2*(6*x+6) = 0
0.5*(6*x-3)-1/2*(6*x+6) = 0
-4.5 = 0
-4.5 = 0
x belongs to the empty set
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