[ Eq(Derivative(x1, t), ((-1)*k24*k1*x3*x1 + (-1)*k24*k3*x4*x1 + 1*k24*k23 + (-1)*k24*k21*x1)/k24),
  Eq(Derivative(x2, t), (1*k24*k1*x3*x1 + 1*k24*k3*x4*x1 + (-1)*k24*(k9*x7*x2 - k10*x9) + 1*k24*k11*x9 + (-1)*k24*(k12*x10*x2 - k13*x11) + (-1)*k24*k20*x2)/k24),
  Eq(Derivative(x3, t), ((-1)*k24*k2*x2*x3 + (-1)*k24*(k16*x8*x3 - k17*x13) + 1*k24*k22 + (-1)*k24*k20*x3)/k24),
  Eq(Derivative(x4, t), (1*k24*k2*x2*x3 + (-1)*k24*(k14*x8*x4 - k15*x12) + (-1)*k24*k20*x4)/k24),
  Eq(Derivative(x5, t), ((-1)*k24*k4*x2*x5 + (-1)*k24*k5*x7*x5 + (-1)*k24*k6*x5 + 1*k24*k22 + (-1)*k24*k21*x5)/k24),
  Eq(Derivative(x6, t), (1*k24*k4*x2*x5 + 1*k24*k5*x7*x5 + 1*k24*k6*x5 + (-1)*k24*k21*x6 + (-1)*k24*k19*x6)/k24),
  Eq(Derivative(x7, t), ((-1)*k24*k5*x7*x5 + 1*k24*k7*x6 + (-1)*k24*(k9*x7*x2 - k10*x9) + (-1)*k24*k21*x7)/k24),
  Eq(Derivative(x8, t), (1*k24*k8*x6 + (-1)*k24*(k14*x8*x4 - k15*x12) + (-1)*k24*(k16*x8*x3 - k17*x13) + (-1)*k24*k21*x8)/k24),
  Eq(Derivative(x9, t), (1*k24*(k9*x7*x2 - k10*x9) + (-1)*k24*k11*x9 + (-1)*k24*k21*x9 + (-1)*k24*k18*x9)/k24),
  Eq(Derivative(x10, t), ((-1)*k24*(k12*x10*x2 - k13*x11) + 1*k24*k22 + (-1)*k24*k21*x10)/k24),
  Eq(Derivative(x11, t), (1*k24*(k12*x10*x2 - k13*x11) + (-1)*k24*k21*x11)/k24),
  Eq(Derivative(x12, t), (1*k24*(k14*x8*x4 - k15*x12) + (-1)*k24*k21*x12)/k24),
  Eq(Derivative(x13, t), (1*k24*(k16*x8*x3 - k17*x13) + (-1)*k24*k21*x13)/k24) ]