I solved this equation:
http://www.fotosik.pl/pokaz_obrazek/25a04e7a09ca7cc1.html using WolframAlpha (y is approximately equal 1,69)
and then I tried to solve the same equation using last version of SmathStudio (0.95.4594) by means of function "solve"
I know that function "solve" acts only in real numbers (in addition, I have arranged a maximum range of roots in Smath (from -1000 to +1000)) and I get a message "no real roots"... Why?