Zgjidh këto ekuacione:

a $$\frac{b-4}{2} = \frac{b+1}{4}$$

b $$\frac{n}{2} - \frac{n}{5} = \frac{3}{10}$$

c $$\frac{c-1}{4} + \frac{c+1}{8} = \frac{3}{2}$$

d $$\frac{2}{3x+1} = 5$$

e $$\frac{x-1}{3} + \frac{x+1}{2} + \frac{x}{6} = 7$$