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