\[\boxed{\text{126\ (126).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ 5x = - 60\]
\[x = - 60\ :5\]
\[x = - 12\]
\[Ответ:x = - 12.\]
\[\textbf{б)} - 10x = 8\]
\[x = - 8\ :10\]
\[x = - 0,8\]
\[Ответ:x = - 0,8.\]
\[\textbf{в)}\ 7x = 9\]
\[x = 9\ :7\]
\[x = 1\frac{2}{7}\]
\[Ответ:x = 1\frac{2}{7}.\]
\[\textbf{г)}\ 6x = - 50\]
\[x = - 50\ :6\]
\[x = - \frac{50}{6} = - \frac{25}{3}\]
\[x = - 8\frac{1}{3}\]
\[Ответ:x = - 8\frac{1}{3}.\]
\[\textbf{д)} - 9x = - 3\]
\[x = - 3\ :( - 9)\]
\[x = \frac{3}{9}\]
\[x = \frac{1}{3}\]
\[Ответ:x = \frac{1}{3}.\]
\[\textbf{е)}\ 0,5x = 1,2\]
\[x = 1,2\ :0,5\]
\[x = 12\ :5\]
\[x = 2,4\]
\[Ответ:x = 2,4.\]
\[\textbf{ж)}\ 0,7x = 0\]
\[x = 0\ :0,7\]
\[x = 0\]
\[Ответ:x = 0.\]
\[\textbf{з)} - 1,5x = 6\]
\[x = - 6\ :1,5\]
\[x = - 60\ :15\]
\[x = - 4\]
\[Ответ:x = - 4.\]
\[\textbf{и)}\ 42x = 13\]
\[x = 13\ :42\]
\[x = \frac{13}{42}\]
\[Ответ:x = \frac{13}{42}.\]