【答案】:
(1)x=-3;(2)x=-$\frac{1}{2}$;(3)0;(4)12
【解析】:
(1)$2x - 1 = 3x + 2$
$2x - 3x = 2 + 1$
$-x = 3$
$x = -3$
(2)$5 - x = 5x + 8$
$-x - 5x = 8 - 5$
$-6x = 3$
$x = -\frac{1}{2}$
(3)$-7x + 1 = -x + 1$
$-7x + x = 1 - 1$
$-6x = 0$
$x = 0$
(4)$\frac{1}{4}x = \frac{1}{6}x + 1$
$\frac{1}{4}x - \frac{1}{6}x = 1$
$\frac{3}{12}x - \frac{2}{12}x = 1$
$\frac{1}{12}x = 1$
$x = 12$