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Code (Text):Nl = 10^(49) ;

Nh = 100 ;

b = 4*10^(-13) ;

Rs = N[((3 Nl)/(4 Pi b Nh^2))^(1/3)];

a = 6*10^(-18) ;

Solve[x/(4 Pi r^2) E^(-Nh a x) a Nl == (1 - x)^2 b Nh,

x]

When I run it, it shows the error:

"Solve::nsmet: This system cannot be solved with the methods available to Solve. >>"

How can I solve this equation? Thanks.

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# Mathematica: Solve error

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