Why I can't find root for transcendental function with SymPy?

Hi all,

I just want to find the solution / the root for exponential / transcendental function this is the code very simple:

using SymPy
@syms t

solve(15t - 75.8*exp(-32t/15) + 1150.3~5000,t)

it returns Any[] , it should returns 256.6, but why it does not?