[ Eq(Derivative(x1, t), ((-1)*k50*(k1*x1*x2 - k2*x6) + (-1)*k50*(k9*x3*x1 - k10*x5) + (-1)*k50*(k15*x11*x1 - k16*x12) + (-1)*k50*(k21*x10*x1 - k22*x13) + 1*k50*(k26 - k25*x1) + (-1)*k50*(k46*k1*x14*x1 - k47*k2*x15) + (-1)*k50*(k46*k1*x16*x1 - k47*k2*x17))/k50),
  Eq(Derivative(x2, t), ((-1)*k50*(k1*x1*x2 - k2*x6) + (-1)*k50*(k5*x2*x4 - k6*x3) + (-1)*k50*k13*x2*x8 + 1*k50*(k28 - k27*x2) + (-1)*k50*(k46*k5*x2*x9 - k47*k6*x14))/k50),
  Eq(Derivative(x3, t), (1*k50*(k5*x2*x4 - k6*x3) + (-1)*k50*(k9*x3*x1 - k10*x5) + (-1)*k50*k31*x3 + (-1)*k50*(k46*k11*x8*x3 - k47*k12*x14))/k50),
  Eq(Derivative(x4, t), ((-1)*k50*(k5*x2*x4 - k6*x3) + (-1)*k50*(k7*x6*x4 - k8*x5) + (-1)*k50*(k11*x8*x4 - k12*x9) + (-1)*k50*(k17*x11*x4 - k18*x10) + (-1)*k50*(k19*x12*x4 - k20*x13) + 1*k50*(k30 - k29*x4))/k50),
  Eq(Derivative(x5, t), (1*k50*(k7*x6*x4 - k8*x5) + 1*k50*(k9*x3*x1 - k10*x5) + (-1)*k50*k32*x5 + (-1)*k50*(k46*k11*x8*x5 - k47*k12*x15))/k50),
  Eq(Derivative(x6, t), (1*k50*(k1*x1*x2 - k2*x6) + (-1)*k50*(k7*x6*x4 - k8*x5) + (-1)*k50*k14*x6*x8 + (-1)*k50*k33*x6 + (-1)*k50*(k46*k5*x6*x9 - k47*k6*x15))/k50),
  Eq(Derivative(x7, t), ((-1)*k50*k3*x7*x2 + (-1)*k50*k4*x7*x6 + (-1)*k50*k23*x7*x11 + (-1)*k50*k24*x7*x12 + 1*k50*(k35 - k34*x7))/k50),
  Eq(Derivative(x8, t), (1*k50*k3*x7*x2 + 1*k50*k4*x7*x6 + (-1)*k50*(k11*x8*x4 - k12*x9) + 1*k50*k23*x7*x11 + 1*k50*k24*x7*x12 + (-1)*k50*k36*x8 + (-1)*k50*(k46*k11*x8*x3 - k47*k12*x14) + (-1)*k50*(k46*k11*x8*x5 - k47*k12*x15) + (-1)*k50*(k46*k11*x8*x10 - k47*k12*x16) + (-1)*k50*(k46*k11*x8*x13 - k47*k12*x17))/k50),
  Eq(Derivative(x9, t), (1*k50*(k11*x8*x4 - k12*x9) + (-1)*k50*k37*x9 + (-1)*k50*(k46*k5*x2*x9 - k47*k6*x14) + (-1)*k50*(k46*k5*x6*x9 - k47*k6*x15) + (-1)*k50*(k46*k5*x11*x9 - k47*k6*x16) + (-1)*k50*(k46*k5*x12*x9 - k47*k6*x17))/k50),
  Eq(Derivative(x10, t), (1*k50*(k17*x11*x4 - k18*x10) + (-1)*k50*(k21*x10*x1 - k22*x13) + (-1)*k50*k38*x10 + (-1)*k50*(k46*k11*x8*x10 - k47*k12*x16))/k50),
  Eq(Derivative(x11, t), (1*k50*k13*x2*x8 + (-1)*k50*(k15*x11*x1 - k16*x12) + (-1)*k50*(k17*x11*x4 - k18*x10) + (-1)*k50*k39*x11 + (-1)*k50*(k46*k5*x11*x9 - k47*k6*x16))/k50),
  Eq(Derivative(x12, t), (1*k50*k14*x6*x8 + 1*k50*(k15*x11*x1 - k16*x12) + (-1)*k50*(k19*x12*x4 - k20*x13) + (-1)*k50*k40*x12 + (-1)*k50*(k46*k5*x12*x9 - k47*k6*x17))/k50),
  Eq(Derivative(x13, t), (1*k50*(k19*x12*x4 - k20*x13) + 1*k50*(k21*x10*x1 - k22*x13) + (-1)*k50*k41*x13 + (-1)*k50*(k46*k11*x8*x13 - k47*k12*x17))/k50),
  Eq(Derivative(x14, t), ((-1)*k50*k42*x14 + 1*k50*(k46*k11*x8*x3 - k47*k12*x14) + 1*k50*(k46*k5*x2*x9 - k47*k6*x14) + (-1)*k50*(k46*k1*x14*x1 - k47*k2*x15))/k50),
  Eq(Derivative(x15, t), (1*k50*(k46*k11*x8*x5 - k47*k12*x15) + 1*k50*(k46*k5*x6*x9 - k47*k6*x15) + 1*k50*(k46*k1*x14*x1 - k47*k2*x15))/k50),
  Eq(Derivative(x16, t), ((-1)*k50*k44*x16 + 1*k50*(k46*k11*x8*x10 - k47*k12*x16) + 1*k50*(k46*k5*x11*x9 - k47*k6*x16) + (-1)*k50*(k46*k1*x16*x1 - k47*k2*x17))/k50),
  Eq(Derivative(x17, t), ((-1)*k50*k43*x17 + (-1)*k50*k45*x17 + 1*k50*(k46*k11*x8*x13 - k47*k12*x17) + 1*k50*(k46*k5*x12*x9 - k47*k6*x17) + 1*k50*(k46*k1*x16*x1 - k47*k2*x17))/k50) ]