\[\boxed{\text{310.}\text{\ }\text{еуроки}\text{-}\text{ответы}\text{\ }\text{на}\text{\ }\text{пятёрку}}\]
Пояснение.
Решение.
\[\textbf{а)}\ |x| = ?\]
\[|10| = 10;\]
\[|0,3| = 0,3;\]
\[|0| = 0;\]
\[| - 9| = 9;\]
\[| - 2,7| = 2,7;\]
\[\textbf{б)}\ x = ?\]
\[|x| = 6\]
\[x = \pm 6.\]
\[|x| = 3,2\]
\[x = \pm 3,2.\]
\[|x| = 0\]
\[x = 0.\]