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w in (-oo:+oo)
2-((2/5)*w) > 14 // - 14
2-((2/5)*w)-14 > 0
(-2/5)*w-14+2 > 0
-2/5*w-12 > 0 // + 12
-2/5*w > 12 // : -2/5
w < 12/(-2/5)
w < -30
w in (-oo:-30)
(-oo:-30)
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