Đề bài

Tìm x biết:

a) $\frac{6}{7}.\,x = \frac{{18}}{{23}}$

b) $\frac{{15}}{{119}}.\,x = 1$

c) $x:\frac{5}{6} = \frac{4}{7}$

d) $x - \frac{3}{7}:\frac{9}{{14}} = \frac{{ - 7}}{3}$

e) $\frac{9}{{13}}.\,x = \frac{{11}}{8} - \frac{{125}}{{1000}}$

g) $\left( {x - \frac{1}{2}} \right):\frac{3}{{11}} = \frac{{11}}{4}$