[ Eq(Derivative(x1, t), (1*k35*k5*x1*(1 - k6*x1) + (-1)*k35*(k7*x3*x1 + k32*(x2/x1)**k33/(k34 + (x2/x1)**k33)*x1 + k16*x6*x1))/k35),
  Eq(Derivative(x2, t), (1*k35*(k22*x4*x1 + k19*x2*x5/(k10 + x5) + k36) + (-1)*k35*(k17*x2 + k21*x2*x1 + k24*x2*x2 + k14*x6*x2))/k35),
  Eq(Derivative(x3, t), (1*k35*(k26 + k9*x1**k30/(k12 + x1**k30)*x3) + (-1)*k35*(k8*x3 + k18*x3*x1 + k15*x6*x3))/k35),
  Eq(Derivative(x4, t), (1*k35*k27 + (-1)*k35*(k28*x4 + k13*x6*x4))/k35),
  Eq(Derivative(x5, t), (1*k35*(k20*x1/(k11 + x1)*x2 + k25*x2*x5 + k37) + (-1)*k35*k31*x5)/k35),
  Eq(Derivative(x6, t), (1*k35*k38 + (-1)*k35*k29*x6)/k35) ]