0.2x-5/3.5=3/5 По шагово мені тре зробити

Решите задачу:

$0.2x- \frac{5}{3.5} = \frac{3}{5}$
$0.2x = \frac{3}{5} +\frac{5}{3.5}$
$0.2x = \frac{3}{5} +\frac{5}{3\frac{5}{10}}$
$0.2x = \frac{3}{5} +\frac{5}{3\frac{1}{2}}$
$0.2x = \frac{3}{5} +\frac{5}{\frac{7}{2}}$
$0.2x = \frac{3}{5} +\frac{5}{1}*\frac{2}{7}$
$\frac{2}{10} x = \frac{3}{5} +\frac{10}{7}$
$\frac{1*7}{35} x = \frac{3*7}{35} +\frac{10*5}{35}$
$\frac{7}{35} x = \frac{21}{35} +\frac{50}{35}$
$\frac{7}{35} x = \frac{71}{35}$
$x = \frac{71}{35}/\frac{7}{35}$
$x = \frac{71}{35}*\frac{35}{7}$
$x = \frac{71}{7}$
$x = 10\frac{1}{7}$