\[ y'(x) (x \cos (y(x))+\sin (x))+\sin (y(x))+y(x) \cos (x)=0 \] ✓ Mathematica : cpu = 0.170458 (sec), leaf count = 17
\[\text {Solve}[x \sin (y(x))+y(x) \sin (x)=c_1,y(x)]\] ✓ Maple : cpu = 0.079 (sec), leaf count = 15
\[ \left \{ y \left ( x \right ) \sin \left ( x \right ) +x\sin \left ( y \left ( x \right ) \right ) +{\it \_C1}=0 \right \} \]