✓ Mathematica : cpu = 0.0067075 (sec), leaf count = 22
DSolve[-(b*y[x]) + (c + b*x - a*y[x])*Derivative[1][y][x] + a*x*Derivative[1][y][x]^2 == 0,y[x],x]
✓ Maple : cpu = 0.065 (sec), leaf count = 66
dsolve(a*x*diff(y(x),x)^2+(b*x-a*y(x)+c)*diff(y(x),x)-b*y(x) = 0,y(x))