۴) $\frac{2}{5}x + \frac{3}{7} = 4x - 1 + \frac{1}{5}x$

۵) $-14 + \frac{3}{17}x = \frac{1}{17}x - 14$

۶) $\frac{2}{19}x - \frac{2}{5} = \frac{4}{19}x + \frac{3}{5}$

۷) $12x + 14 = \frac{1}{2}x - \frac{1}{3}$

۸) $\frac{7}{12}x + \frac{3}{2}x = \frac{5}{3}x - \frac{4}{3}$

۹) $\frac{6}{5}x + \frac{9}{5}x = -x + \frac{12}{5}$

۱۰) $-\frac{4}{5}x + \frac{3}{7} = -\frac{1}{2}x + \frac{13}{2}$

۱۱) $-\frac{5}{9} + \frac{22x}{3} = x + \frac{4}{3}x - \frac{1}{9}$