Решебник по математике 6 класс Мерзляк ФГОС Задание 1162

\[\boxed{\mathbf{1162\ (1154)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]

\[1)\ \frac{x - 8}{x + 2} = \frac{7}{3}\ \ | \cdot 3 \cdot (x + 2);\ \]

\[\ \ x \neq - 2\]

\[3 \cdot (x - 8) = 7 \cdot (x + 2)\]

\[3x - 24 = 7x + 14\]

\[7x - 3x = - 24 - 14\]

\[4x = - 38\]

\[x = - 9,5\]

\[Ответ:\ - 9,5.\]

\[2)\frac{x}{x - 1,2} = \frac{15}{x - 10}\text{\ \ \ }\]

\[\ | \cdot (x - 1,2)(x - 10);\]

\[\ \ x \neq 1,2;\ \ x \neq 10\]

\[4 \cdot (x - 10) = 15 \cdot (x - 1,2)\]

\[4x - 40 = 15x - 18\]

\[15x - 4x = - 40 + 18\]

\[11x = - 22\]

\[x = - 2\]

\[Ответ:\ - 2.\]