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n in (-oo:+oo)
n/0.7 = 0.05/5 // - 0.05/5
n/0.7-(0.05/5) = 0
n/0.7-0.01 = 0
1.42857143*n-0.01 = 0 // + 0.01
1.42857143*n = 0.01 // : 1.42857143
n = 0.01/1.42857143
n = 0.007
n = 0.007
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