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n in (-oo:+oo)
227.4 = n/3.5 // - n/3.5
227.4-(n/3.5) = 0
227.4-0.28571429*n = 0
227.4-0.28571429*n = 0 // - 227.4
-0.28571429*n = -227.4 // : -0.28571429
n = -227.4/(-0.28571429)
n = 795.89998806
n = 795.89998806
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