Răspuns:
[tex] \frac{2 \times 3 + 1}{3} x + \frac{8}{100} = \frac{12}{10} \\ \frac{7}{3} x + \frac{2}{25} = \frac{6}{5} \\ \\ \frac{7}{3} x = \frac{6}{5} - \frac{2}{25} \\ \\ \frac{7}{3} x = \frac{30 - 2}{25} \\ \\ \frac{7}{3} x = \frac{28}{25} \\ \\ x = \frac{28}{25} \times \frac{3}{7} \\ \\ x = \frac{12}{25} [/tex]
