Помогите решить уравнение - - - u'-(2/(2x+1))*v=0

[latex]u' - \frac{2}{2x+1}v = 0, \\ \frac{2v}{2x+1} = u', \\ 2xu' + u' = 2v, \\ 2xu' = 2v-u', \\ x = \frac{2v-u'}{2u'} = \frac{v}{u'} - \frac{1}{2}. [/latex]