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x in (-oo:+oo)
3/2 = 2*x-(1/10) // - 2*x-(1/10)
3/2-(2*x)+1/10 = 0
3/2-2*x+1/10 = 0
8/5-2*x = 0 // - 8/5
-2*x = -8/5 // : -2
x = -8/5/(-2)
x = 4/5
x = 4/5
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