2/5(5x-15)>4
$$\begin{array}{rll} 2/5(5x-15)&>&4\\ 5*[2/5(5x-15)]&>&5*4\\ 2(5x-15)&>&20\\ 5x-15&>&10\\ 5x&>&25\\ x&>&5\\ \end{array}$$