1,2856= ( Nmax ) / ( 1+ (Nmax / 0,4523 -1) e-0,0607*20 )
1,2856*( 1+ (Nmax / 0,4523 -1) e-0,0607*20 ) = ( Nmax )
1,2856+ 1,2856 (Nmax / 0,4523 -1) e-0,0607*20 ) = ( Nmax )
1,2856+ 0,3818 (Nmax / 0,4523 -1) = Nmax
1,2856+ 0,3818 *Nmax / 0,4523 - 0,3818 = Nmax
0,9037 + 0,3818 *Nmax / 0,4523 = Nmax
0,9037 + 0,8442 *Nmax = Nmax
0,9037 = 0,1558 Nmax
5,800 = Nmax