Tìm x biết a) x − 3/5 = 7/10 .

(2 điểm) Tìm \(x\) biết

a) \(x - \frac{3}{5} = \frac{7}{{10}}\).                                  

b) \(\frac{7}{3} \cdot x + \frac{5}{6} = \frac{7}{6}\).

c) \({\left( {x - \frac{3}{4}} \right)^2} = \frac{{25}}{{16}}\).          

d) \(\frac{6}{7} \cdot x - \frac{5}{{14}} = \frac{3}{{14}} - \frac{4}{7} \cdot x\).