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x in (-oo:+oo)
3/8 = (3*x^1)/8 // - (3*x^1)/8
3/8-((3*x^1)/8) = 0
(-3/8)*x+3/8 = 0
3/8-3/8*x = 0 // - 3/8
-3/8*x = -3/8 // : -3/8
x = -3/8/(-3/8)
x = 1
x = 1
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