Răspuns:
2018,(3)
Explicație pas cu pas:
[tex]( x \times \frac{2}{10} + \frac{6}{9} ) \div \frac{25}{10} = \frac{4}{10} \\ (\frac{x}{5} + \frac{1}{3}) \times \frac{2}{5} = \frac{2}{5} \\ \frac{3x + 5}{15} = 1 \\ 3x = 15 - 5 \\ x = \frac{10}{3} [/tex]
[tex] \frac{20216 - 2021}{9} - \frac{10}{3} = \frac{18195 - 30}{9} = \frac{18165}{9} = 2018.(3)[/tex]
