Explicație pas cu pas:
[tex]x = y \times \frac{95}{100} = > y = \frac{100x}{95} \\ \frac{100x}{95} = 2x - 1 \\ 100x = 190x - 95 = > 90x = 95 \\ x = \frac{95}{90} = > x = \frac{19}{18}[/tex]
[tex]y = 2 \times \frac{19}{18} - 1 = \frac{20}{18} = > y = \frac{10}{9} [/tex]
[tex] = > ( \frac{19}{18}; \frac{10}{9} )[/tex]
