[ Eq(Derivative(x1, t), ((-1)*k1*k2*k15*x1 + 1*k1*k8*x17 + 1*k1*k10)/k1),
  Eq(Derivative(x2, t), 0),
  Eq(Derivative(x3, t), (1*k1*k2*k15*x1 + (-1)*k1*k3*x5*x3)/k1),
  Eq(Derivative(x4, t), 0),
  Eq(Derivative(x5, t), ((-1)*k1*k3*x5*x3 + 1*k1*k8*x17 + 1*k1*k9)/k1),
  Eq(Derivative(x6, t), 0),
  Eq(Derivative(x7, t), (1*k1*k3*x5*x3 + (-1)*k1*k4*k18*k15*x7)/k1),
  Eq(Derivative(x8, t), 0),
  Eq(Derivative(x9, t), 0),
  Eq(Derivative(x10, t), 0),
  Eq(Derivative(x11, t), (1*k1*k4*k18*k15*x7 + (-1)*k1*k7*x11*k24)/k1),
  Eq(Derivative(x12, t), 0),
  Eq(Derivative(x13, t), 0),
  Eq(Derivative(x14, t), 0),
  Eq(Derivative(x15, t), 0),
  Eq(Derivative(x16, t), ((-1)*k1*(k5*x16*k21 - k6*x17*k22) + 1*k1*k7*x11*k24 + (-1)*k1*k12*x16/(k11 + x16))/k1),
  Eq(Derivative(x17, t), (1*k1*(k5*x16*k21 - k6*x17*k22) + (-1)*k1*k8*x17 + (-1)*k1*k14*x17/(k13 + x17))/k1) ]