\[ 5 - \frac{3(1-2x)}{12} = \frac{4(3x+20)}{12} + \frac{4x}{12} \]
\[ 60 - 3(1-2x) = 4(3x+20) + 4x \]
\[ 60 - 3 + 6x = 12x + 80 + 4x \]
\[ 57 + 6x = 16x + 80 \]
\[ 57 - 80 = 16x - 6x \]-23 = 10x
\[ x = \frac{-23}{10} \]x = -2.3
Ответ: x = -2,3