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x in (-oo:+oo)
(6*(3*x+2))/2-((6*(x+1))/3) = 6*x // - 6*x
(6*(3*x+2))/2-((6*(x+1))/3)-(6*x) = 0
(6*(3*x+2))/2-2*(x+1)-6*x = 0
(6*(3*x+2))/2+(-2*2*(x+1))/2+(-6*2*x)/2 = 0
6*(3*x+2)-2*2*(x+1)-6*2*x = 0
14*x-12*x+8 = 0
2*x+8 = 0
(2*x+8)/2 = 0
(2*x+8)/2 = 0 // * 2
2*x+8 = 0
2*x+8 = 0 // - 8
2*x = -8 // : 2
x = -8/2
x = -4
x = -4
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