Question

$2x+3\ \textgreater \ 13$

Answer 1

$2x+3\ \textgreater \ 13\to \\\\ 2x\ \textgreater \ 13-3\to \\\\ 2x\ \textgreater \ 10\to \\\\ x\ \textgreater \ \frac{10}{2} \to \\\\ x\ \textgreater \ 5\\\\\\ \boxed{ S=\{xER|~x\ \textgreater \ 5\}}$