[ Eq(Derivative(x1, t), ((-1)*k22*k7*x1*x2 + (-1)*k22*k9*x1*x3 + 1*k22*k8*x4 + 1*k22*k10*x5 + (-1)*k22*k4*x1 + (-1)*k22*k5*x1 + 1*k6*x7/k1 + 1*k2*x8*k1)/k22),
  Eq(Derivative(x2, t), ((-1)*k22*k7*x1*x2 + (-1)*k22*k21*x5*x2 + 1*k22*k8*x4 + 1*k22*k19*x6 + 1*k22*k11 + (-1)*k22*k12*x2)/k22),
  Eq(Derivative(x3, t), ((-1)*k22*k9*x1*x3 + (-1)*k22*k20*x4*x3 + 1*k22*k10*x5 + 1*k22*k18*x6 + 1*k22*k13 + (-1)*k22*k14*x3)/k22),
  Eq(Derivative(x4, t), (1*k22*k7*x1*x2 + (-1)*k22*k20*x4*x3 + 1*k22*k19*x6 + (-1)*k22*(k8 + k15)*x4)/k22),
  Eq(Derivative(x5, t), (1*k22*k9*x1*x3 + (-1)*k22*k21*x5*x2 + 1*k22*k18*x6 + (-1)*k22*(k10 + k16)*x5)/k22),
  Eq(Derivative(x6, t), (1*k22*k20*x4*x3 + 1*k22*k21*x5*x2 + (-1)*k22*(k18 + k19 + k17)*x6)/k22),
  Eq(Derivative(x7, t), (1*k5*x1*k1 + (-1)*k23*k6*x7)/k23),
  Eq(Derivative(x8, t), (-1)*k23*k2*x8/k23) ]