3.8/0.1x+3=10/11 ПО щагово мені тре зробити

Решите задачу:

$\frac{3,8}{0,1x} +3 = \frac{10}{11}$
$\frac{3,8}{0,1x} = \frac{10}{11} -3$
$\frac{3,8}{0,1x} = \frac{10}{11} - \frac{33}{11}$
$\frac{3,8}{0,1x} = - \frac{23}{11}$
$0,1x = \frac{3,8}{- \frac{23}{11}}$
$0,1x = (3\frac{8}{10}) /(- \frac{23}{11})$
$-\frac{1}{10} x = \frac{38}{10}*\frac{11}{23}$
$\frac{1}{10} x = -\frac{418}{230}$
$x = (-\frac{418}{230})/( \frac{1}{10})$
$x = -\frac{418}{230}* \frac{10}{1}$
$x = -\frac{4180}{230}$
$x = -18\frac{4}{23}$