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x in (-oo:+oo)
3/1 = x/3.3 // - x/3.3
3/1-(x/3.3) = 0
3-0.3030303*x = 0
3-0.3030303*x = 0 // - 3
-0.3030303*x = -3 // : -0.3030303
x = -3/(-0.3030303)
x = 9.9000001
x = 9.9000001
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