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X in (-oo:+oo)
X/12 < 16 // - 16
X/12-16 < 0
1/12*X-16 < 0 // + 16
1/12*X < 16 // : 1/12
X < 16/1/12
X < 192
X in (-oo:192)
(-oo:192)
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