[tex] y = \frac{1}{2} - \frac{2}{5} [/tex][tex] y = \frac{5}{10} - \frac{4}{10} [/tex][tex] y = \frac{1}{10} [/tex]
[tex] y = \frac{1}{2} - \frac{2}{5} [/tex]
[tex] y = \frac{5}{10} - \frac{4}{10} [/tex]
[tex] y = \frac{1}{10} [/tex]