-2(5/4-3/4)+5y=17

-2(5/4-3/4)+5y=17

$\begin{array}{rcl} -2(\frac54-\frac34)+5y &=& 17 \\ -2(\frac{5-3}{4})+5y &=& 17 \\ -2(\frac24)+5y &=& 17 \\ -\frac44+5y &=& 17 \\ -1+5y &=& 17 \qquad | \qquad +1\\ 5y &=& 18 \qquad | \qquad :5\\ y &=& \frac{18}{5} \\ y &=& 3\frac{3}{5} \\ y &=& 3.6 \end{array}$