\( 8 + 4(x - 2) = -10 - x \)
\( 8 + 4x - 8 = -10 - x \)
\( 4x = -10 - x \)
\( 4x + x = -10 \)
\( 5x = -10 \)
\( x = \frac{-10}{5} \)
\( x = -2 \)
Ответ: \(x = -2\).