First of all, you cannot see LaTeX like other fancy applications. In other words LaTeX installation does not include GUI.
If LaTeX is installed successfully, then you can simply call it from your terminal. To check if it is really installed, type this in the terminal:
$ latex -v
This should output the version information of installed LaTeX.
If that is successful, then the simplest way to typeset is
$ latex path/to/file-to-typeset.tex
This should generate
file-to-typeset.dvi in the same directory in which .tex file exists.
Some text editors can call latex command inside (e.g. Emacs) so that you don't have to switch back and forth from the text editor to the terminal.