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

Ответ:

\[\frac{x - 1}{2} - \frac{2x}{3} = \frac{x + 3}{5}\ \ \ \ \ \ \ | \cdot 30\]

\[15 \cdot (x - 1) - 10 \cdot 2x = 6 \cdot (x + 3)\]

\[15x - 15 - 20x = 6x + 18\]

\[- 5x - 6x = 18 + 15\]

\[- 11x = 33.\]

\[x = 33\ :( - 11)\]

\[x = - 3\]

\[Ответ:x = - 3.\]