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x in (-oo:+oo)
3/4 = (8/2)*x // - (8/2)*x
3/4-((8/2)*x) = 0
3/4-4*x = 0
3/4-4*x = 0 // - 3/4
-4*x = -3/4 // : -4
x = -3/4/(-4)
x = 3/16
x = 3/16
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