Очень Срочно! Помогите пожалуйста!

$\frac{1}{3}x = 1.5 =\ \textgreater \ x = \frac{15}{10} * \frac{3}{1} =\ \textgreater \ x = \frac{45}{10} =\ \textgreater \ x = 4.5$

$0.5x - 4.5 = 0 =\ \textgreater \ x = \frac{4.5}{0.5} = \frac{45}{5} = 9$

$4x + 9 = 2x - 8.4 =\ \textgreater \ 2x = -17.4 =\ \textgreater \ x = -8.7$

$2x - (6x - 0.9) = -8.7 =\ \textgreater \ 2x - 6x + 0.9 = -8.7 =\ \textgreater \ -4x = -9.6 =\ \textgreater \$
$=\ \textgreater \ 4x = 9.6 =\ \textgreater \ x = \frac{96}{40} =\ \textgreater \ x = \frac{24}{10} = 2.4$

$-5(2.4 + 1.1x) = 3.2x+5.4 =\ \textgreater \ -12 - 5.5x = 3.2x + 5.4 =\ \textgreater \$
$=\ \textgreater \ -8.7x = 17.4 =\ \textgreater \ x = -2$

Иван Крылов "Квартет"