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x in (-oo:+oo)
(x-2)/18 = (x-3)/15 // - (x-3)/15
(x-2)/18-((x-3)/15) = 0
(x-2)/18+(-1*(x-3))/15 = 0
(15*(x-2))/(15*18)+(-1*18*(x-3))/(15*18) = 0
15*(x-2)-1*18*(x-3) = 0
24-3*x = 0
(24-3*x)/(15*18) = 0
(24-3*x)/(15*18) = 0 // * 15*18
24-3*x = 0
24-3*x = 0 // - 24
-3*x = -24 // : -3
x = -24/(-3)
x = 8
x = 8
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