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v in (-oo:+oo)
8 = v/25.6 // - v/25.6
8-(v/25.6) = 0
8-0.0390625*v = 0
8-0.0390625*v = 0 // - 8
-0.0390625*v = -8 // : -0.0390625
v = -8/(-0.0390625)
v = 204.8
v = 204.8
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