$$\left. \begin{array} { l } { 342 k g \cdot 20 - 2 t 4 q : 50 + 1458 k g } \\ { ( 1 k g - 1200 g : 40 + 217 g ) \cdot 4 } \end{array} \right.$$
$\frac{4g\left(kqt_{4}+187qt_{4}-207450gk^{2}-38793150gk\right)}{25}$
$-\frac{qt_{4}}{25}+8298gk,\ 4gk+748g$
