§ Задание 249
\[\boxed{\text{4.\ 249}}\]
\[\textbf{а)}\ |x| < 5\]
\[x = \left\{ - 4;\ - 3;\ - 2;\ - 1;0;1;2;3;4 \right\}\text{.\ }\]
\[\textbf{б)}\ 5 < |x| < 12\]

\[\boxed{\text{4.\ 249}}\]
\[\textbf{а)}\ |x| < 5\]
\[x = \left\{ - 4;\ - 3;\ - 2;\ - 1;0;1;2;3;4 \right\}\text{.\ }\]
\[\textbf{б)}\ 5 < |x| < 12\]
