192. Solve the system of equations in integers:

$$
\left\{\begin{array}{l}
3 x-2 y+4 z+2 t=19 \\
5 x+6 y-2 z+3 t=23
\end{array}\right.
$$
192. Excluding $t$, we find: $x+18 y-16 z=-11$.

Answer. $x=16 z-18 y-11, t=28 y-26 z+26$.