\[\boxed{\text{237\ (237).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ |x| = 5\]
\[x = \pm 5\ \]
\[Ответ:x = \pm 5.\]
\[\textbf{б)}\ |a| - 17 = 0\]
\[|a| = 17\]
\[a = \pm 17\]
\[Ответ:a = \pm 17.\]
\[\textbf{в)}\ 6 - |b| = 0\]
\[|b| = 6\]
\[b = \pm 6\]
\[Ответ:b = \pm 6.\]