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x in (-oo:+oo)
(6*x+6)/6+18*x-(2*x) = 54*x // - 54*x
(6*x+6)/6+18*x-(2*x)-(54*x) = 0
(6*x+6)/6+18*x-2*x-54*x = 0
(6*x+6)/6+(6*18*x)/6+(-2*6*x)/6+(-54*6*x)/6 = 0
6*x+6*18*x-2*6*x-54*6*x+6 = 0
114*x-12*x-324*x+6 = 0
102*x-324*x+6 = 0
6-222*x = 0
(6-222*x)/6 = 0
(6-222*x)/6 = 0 // * 6
6-222*x = 0
6-222*x = 0 // - 6
-222*x = -6 // : -222
x = -6/(-222)
x = 1/37
x = 1/37
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