Решите уравнение: (3-x)/3=(x+1)/2-5x/4.

Ответ:

\[\frac{3 - x}{3} = \frac{x + 1}{2} - \frac{5x}{4}\ \ \ \ \ \ \ | \cdot 12\]

\[4 \cdot (3 - x) = 6 \cdot (x + 1) - 3 \cdot 5x\]

\[12 - 4x = 6x + 6 - 15x\]

\[- 4x + 9x = 6 - 12\]

\[5x = - 6\]

\[x = - \frac{6}{5} = - 1\frac{1}{5}\]

\[x = - 1,2.\]