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n in (-oo:+oo)
(-1/2)*n < 22 // - 22
(-1/2)*n-22 < 0
-1/2*n-22 < 0 // + 22
-1/2*n < 22 // : -1/2
n > 22/(-1/2)
n > -44
n in (-44:+oo)
(-44:+oo)
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