\[- 5 \cdot (0,6c - 1,2) - 1,5c - 3 =\]
\[= - 3c + 6 - 1,5c - 3 = - 4,5c + 3\]
\[при\ \ c = - \frac{4}{9}:\]
\[- 4,5c + 3 = - 4,5 \cdot \left( - \frac{4}{9} \right) + 3 =\]
\[= \frac{45 \cdot 4}{10 \cdot 9} + 3 = 2 + 3 = 5.\]