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x in (-oo:+oo)
3*x-((6*x-4)/2) = -2 // + 2
3*x-((6*x-4)/2)+2 = 0
(-1*(6*x-4))/2+3*x+2 = 0
(-1*(6*x-4))/2+(2*3*x)/2+(2^2)/2 = 0
2*3*x-1*(6*x-4)+4 = 0
4+4 = 0
8 = 0
8/2 = 0
8/2 = 0 // * 2
8 = 0
x belongs to the empty set
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