$$\left. \begin{array} { l } { v } \\ { \quad 4 v ^ { 2 } - 19 v = 5 } \end{array} \right.$$
$v=5\text{, }w=5$
$v=-\frac{1}{4}=-0.25\text{, }w=-\frac{1}{4}=-0.25$
