\[\boxed{\text{925\ (925).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ 3x(x - 1) - 17 =\]
\[= x(1 + 3x) + 1\]
\[3x^{2} - 3x - 17 = x + 3x^{2} + 1\]
\[4x = - 18\]
\[x = - 4,5\]
\[Ответ:\ x = - 4,5.\]
\[\textbf{б)}\ 2x - (x + 2)(x - 2) =\]
\[= 5 - (x - 1)²\]
\[2x - x^{2} + 4 = 5 - x^{2} + 2x - 1\]
\[4 = 4\]
\[Ответ:x - любое\ число.\]
\[\textbf{в)}\ \frac{3x + 1}{2} = \frac{2x - 3}{5}\]
\[15x + 5 = 4x - 6\]
\[11x = - 11\]
\[x = - 1\]
\[Ответ:\ x = - 1.\]
\[\textbf{г)}\ \frac{x - 3}{6} + x = \frac{2x - 1}{3} - \frac{4 - x}{2}\]
\[x - 3 + 6x = 4x - 2 - 12 + 3x\]
\[- 3 = - 14\]
\[Ответ:нет\ решений.\]