[ Eq(Derivative(x1, t), (1*k55*k2*x7*k1*(1 + x20/k47 + x12/k48 + x5/k49 + x3/k50)/(k1 + k3*(1 + x1/k54)) + (-1)*k55*k4*x8*x1/(x1 + k5*(1 + x12/k54)) + (-1)*k55*k6*x9*x1/(x1 + k7*(1 + x20/k46 + x19/k44 + x20/k54)) + (-1)*k55*k8*x10*x1/(x1 + k9*(1 + x23/k32 + x22/k54)) + (-1)*k55*k14*x14*x1/(x1 + k15*(1 + x21/k36 + x19/k37 + x23/k40 + x3/k41 + x2/k54)) + (-1)*1/10*x1*k55)/k55),
  Eq(Derivative(x2, t), (1*k55*k14*x14*x1/(x1 + k15*(1 + x21/k36 + x19/k37 + x23/k40 + x3/k41 + x2/k54)) + (-1)*k55*k20*x17*x2/(x2 + k21*(1 + x3/k54)) + (-1)*k55*k14*x14*x2/(x2 + k15*(1 + x21/k36 + x19/k37 + x23/k40 + x3/k41 + x4/k54)))/k55),
  Eq(Derivative(x3, t), (1*k55*k20*x17*x2/(x2 + k21*(1 + x3/k54)) + (-1)*k26*x3*k55)/k55),
  Eq(Derivative(x4, t), (1*k55*k14*x14*x2/(x2 + k15*(1 + x21/k36 + x19/k37 + x23/k40 + x3/k41 + x4/k54)) + (-1)*k55*k16*x15*x4/(x4 + k17*(1 + x5/k54)) + (-1)*k55*x4*k27)/k55),
  Eq(Derivative(x5, t), (1*k55*k16*x15*x4/(x4 + k17*(1 + x5/k54)) + (-1)*k55*k18*x16*x5/(x5 + k19*(1 + x21/k42 + x3/k43 + x6/k54)) + (-1)*k55*k28*x5)/k55),
  Eq(Derivative(x6, t), 1*k55*k18*x16*x5/(x5 + k19*(1 + x21/k42 + x3/k43 + x6/k54))/k55),
  Eq(Derivative(x7, t), 0/k55),
  Eq(Derivative(x8, t), (1*k55*k53*x23*x23/(x23*x23 + k52*k52) + (-1)*k55*k29*x8)/k55),
  Eq(Derivative(x9, t), (-1)*k55*k45*x12*x9/k55),
  Eq(Derivative(x10, t), 0/k55),
  Eq(Derivative(x11, t), 0/k55),
  Eq(Derivative(x12, t), (1*k55*k4*x8*x1/(x1 + k5*(1 + x12/k54)) + (-1)*k55*k20*x17*x12/(x12 + k21*(1 + x19/k54)) + (-1)*k22*k55*x12)/k55),
  Eq(Derivative(x13, t), ((-1)*k33*x12*x13*k55 + (-1)*k55*k34*x22*x13)/k55),
  Eq(Derivative(x14, t), (1*k55*k51*x5*x14 + (-1)*k55*k38*x4*x14 + (-1)*k55*k39*x2*x14 + (-1)*k55*k35*x14*x12)/k55),
  Eq(Derivative(x15, t), (-1)*k55*k16*x15*x4/((x4 + k17)*129)/k55),
  Eq(Derivative(x16, t), 0/k55),
  Eq(Derivative(x17, t), 0/k55),
  Eq(Derivative(x18, t), 0/k55),
  Eq(Derivative(x19, t), (1*k55*k20*x17*x12/(x12 + k21*(1 + x19/k54)) + (-1)*k23*x19*k55)/k55),
  Eq(Derivative(x20, t), (1*k55*k6*x9*x1/(x1 + k7*(1 + x20/k46 + x19/k44 + x20/k54)) + (-1)*k55*k20*x17*x20/(x20 + k21*(1 + x21/k54)))/k55),
  Eq(Derivative(x21, t), 1*k55*k20*x17*x20/(x20 + k21*(1 + x21/k54))/k55),
  Eq(Derivative(x22, t), (1*k55*k8*x10*x1/(x1 + k9*(1 + x23/k32 + x22/k54)) + (-1)*k55*k10*x11*x22/(x22 + k11*(1 + x1/k30 + x19/k31 + x23/k54)) + (-1)*k55*k12*x13*x22/(x22 + k13*(1 + x24/k54)))/k55),
  Eq(Derivative(x23, t), 1*k55*k10*x11*x22/(x22 + k11*(1 + x1/k30 + x19/k31 + x23/k54))/k55),
  Eq(Derivative(x24, t), (1*k55*k12*x13*x22/(x22 + k13*(1 + x24/k54)) + (-1)*k55*k24*x24)/k55),
  Eq(Derivative(x25, t), (1*k24*x24*k55 + (-1)*k25*x25*k55)/k55) ]