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H in (-oo:+oo)
9.8 = H/2.3 // - H/2.3
9.8-(H/2.3) = 0
9.8-0.43478261*H = 0
9.8-0.43478261*H = 0 // - 9.8
-0.43478261*H = -9.8 // : -0.43478261
H = -9.8/(-0.43478261)
H = 22.53999993
H = 22.53999993
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