\[ 2(x+1) - 8 = 6 \]
\[ 2x + 2 - 8 = 6 \]
\[ 2x - 6 = 6 \]
\[ 2x = 6 + 6 \]\[ 2x = 12 \]
\[ x = \frac{12}{2} \]\[ x = 6 \]
Ответ: x = 6