3.91   ODE No. 91

$$\boxed{{\displaystyle x\frac{\mathrm{d}}{\mathrm{d}x}y\left(x\right)-y\left(x\right)-\frac{x}{\ln \left(x\right)}=0}}$$

1. Problem in Latex
2. Mathematica input
3. Maple input

Mathematica: cpu = 0.005501 (sec), leaf count = 15 $$\left\{\{y(x)\to c_{1}x+x\log (\log (x))\}\right\}$$

Maple: cpu = 0.015 (sec), leaf count = 11 $$\{y\left(x\right)=(\ln (\ln \left(x\right))+\mathit{\_}\mathit{C}\mathit{1})x\}$$