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x in (-oo:+oo)
(1/6)*(3*x-108) = 5*x // - 5*x
(1/6)*(3*x-108)-(5*x) = 0
(1/6)*(3*x-108)-5*x = 0
1/6*(3*x-108)-5*x = 0
1/6*(3*x-108)-5*x = 0
-9/2*x-18 = 0
-9/2*x-18 = 0
-9/2*x-18 = 0 // + 18
-9/2*x = 18 // : -9/2
x = 18/(-9/2)
x = -4
x = -4
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