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x in (-oo:+oo)
x/2 > 3-(x/4) // - 3-(x/4)
x/2+x/4-3 > 0
3/4*x-3 > 0 // + 3
3/4*x > 3 // : 3/4
x > 3/3/4
x > 4
x in (4:+oo)
(4:+oo)
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