1. 解方程:
(1) $5 - \frac{x + 1}{5} = x$;
(2) $\frac{x + 1}{2} - \frac{2 - 3x}{6} = 1$;
(3) $\frac{x - 1}{4} = \frac{2x + 1}{6} + 1$;
(4) $\frac{2x - 1}{3} = 1 - \frac{2x - 1}{6}$;
(5) $\frac{x - 1}{2} = 2 - \frac{3x + 7}{5}$;
(6) $1 - \frac{3x - 5}{2} = \frac{1 + 5x}{3}$。
(1) $5 - \frac{x + 1}{5} = x$;
(2) $\frac{x + 1}{2} - \frac{2 - 3x}{6} = 1$;
(3) $\frac{x - 1}{4} = \frac{2x + 1}{6} + 1$;
(4) $\frac{2x - 1}{3} = 1 - \frac{2x - 1}{6}$;
(5) $\frac{x - 1}{2} = 2 - \frac{3x + 7}{5}$;
(6) $1 - \frac{3x - 5}{2} = \frac{1 + 5x}{3}$。
答案
(1)$x=4$
(2)$x=\frac{5}{6}$
(3)$x=-17$
(4)$x=\frac{3}{2}$
(5)$x=1$
(6)$x=1$
(2)$x=\frac{5}{6}$
(3)$x=-17$
(4)$x=\frac{3}{2}$
(5)$x=1$
(6)$x=1$
2. 解方程:
(1) $x - \frac{x - 2}{5} = \frac{2x - 5}{3} - 3$;
(2) $\frac{2x - 1}{3} - \frac{10x + 1}{6} = \frac{2x + 1}{4} - 1$;
(3) $\frac{0.1x - 2}{0.2} - \frac{x + 1}{0.1} = 1$;
(4) $2.4 - \frac{x - 4}{2.5} = \frac{3}{5}x$。
(1) $x - \frac{x - 2}{5} = \frac{2x - 5}{3} - 3$;
(2) $\frac{2x - 1}{3} - \frac{10x + 1}{6} = \frac{2x + 1}{4} - 1$;
(3) $\frac{0.1x - 2}{0.2} - \frac{x + 1}{0.1} = 1$;
(4) $2.4 - \frac{x - 4}{2.5} = \frac{3}{5}x$。
答案
(1)$x=-38$
(2)$x=\frac{1}{6}$
(3)$x=-\frac{42}{19}$
(4)$x=4$
(2)$x=\frac{1}{6}$
(3)$x=-\frac{42}{19}$
(4)$x=4$
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