[ Eq(Derivative(x1, t), ((-1)*k9*k11*x2*x1/x4/((k12 + k13*x1/x4 + k14*x2 + x2*x1/x4)*(1 + x3**k15/k16)) + 1*k10*k82*(x17 - x1/k83)/(k84*(1 + x1/k85) + x17) + (-1)*k10*k86*x1*(x1/k87 + 1)**(k88 - 1)*k2/(k87*(k89*((1 + k1/k90)/(x8/k91 + k3/k92 + 1))**k88 + (x1/k87 + 1)**k88)*(k2 + k93)) + (-1)*k10*k94*x1*(1 + (x8/k95)**k96)/(k97 + x1) + (-1)*k10*k98*x1/(k99 + x1) + (-1)*k10*k102*x11**k103*x1**k104/((k105 + x11**k103)*(k106 + x1**k104)) + (-1)*k10*k8*x1)/k10),
  Eq(Derivative(x2, t), ((-1)*k9*k11*x2*x1/x4/((k12 + k13*x1/x4 + k14*x2 + x2*x1/x4)*(1 + x3**k15/k16)) + 1*k9*k8*(k128 - x2))/k9),
  Eq(Derivative(x3, t), (1*k9*k11*x2*x1/x4/((k12 + k13*x1/x4 + k14*x2 + x2*x1/x4)*(1 + x3**k15/k16)) + (-1)*k10*k17*(x3 - x5/k18)/(k19*(1 + x5/(k20*(1 + x7/k21)) + x7/k22) + x3) + (-1)*k10*k23*(x3 - x6/k24)/(k25*(1 + x6/k26) + x3) + (-1)*k10*k27*x3*k4/((x3 + k28)*(1 + k5/k29)*(k30*(1 + k5/k31) + k4)) + (-1)*k10*k8*x3)/k10),
  Eq(Derivative(x4, t), (1*k9*k11*x2*x1/x4/((k12 + k13*x1/x4 + k14*x2 + x2*x1/x4)*(1 + x3**k15/k16)) + 1*k10*k67 + 1*k10*k86*x1*(x1/k87 + 1)**(k88 - 1)*k2/(k87*(k89*((1 + k1/k90)/(x8/k91 + k3/k92 + 1))**k88 + (x1/k87 + 1)**k88)*(k2 + k93)) + (-1)*k10*k100*x4/(k101 + x4) + (-1)*k10*k107*x4**k108/(k109*(1 + x19/k110) + x4**k108) + 1*k10*k111 + (-1)*k10*k8*x4)/k10),
  Eq(Derivative(x5, t), (1*k10*k17*(x3 - x5/k18)/(k19*(1 + x5/(k20*(1 + x7/k21)) + x7/k22) + x3) + (-1)*k10*k32*k1*x5/((k1 + k33*(1 + k2/k34))*(x5 + k35*(1 + x1/k36 + k2/k37 + k3/k38)/(1 + k2/k39 + k3/k40))*(1 + k41/(1 + x5*(1 + k2/k39 + k3/k40)/(k35*(1 + x1/k36 + k2/k37 + k3/k38)))**k42)) + 1*k10*k43*(x10*x9 - x11*x5/k44) + 1*k10*k47*(x12*x11 - x5*x10/k48) + (-2)*k10*k49 + (-1)*k10*k8*x5)/k10),
  Eq(Derivative(x6, t), (1*k10*k23*(x3 - x6/k24)/(k25*(1 + x6/k26) + x3) + (-1)*k10*k123*x6*k1*(1 + (x8/k124)**k125)/((k126 + k1)*(k127 + x6)) + (-1)*k10*k8*x6)/k10),
  Eq(Derivative(x7, t), (1*k10*k27*x3*k4/((x3 + k28)*(1 + k5/k29)*(k30*(1 + k5/k31) + k4)) + (-1)*k10*k112*x7*k4/((x7 + k113)*(k4 + k114*(1 + k5/k115)*(1 + k1/k116))) + (-1)*k10*k8*x7)/k10),
  Eq(Derivative(x8, t), (1*k10*k32*k1*x5/((k1 + k33*(1 + k2/k34))*(x5 + k35*(1 + x1/k36 + k2/k37 + k3/k38)/(1 + k2/k39 + k3/k40))*(1 + k41/(1 + x5*(1 + k2/k39 + k3/k40)/(k35*(1 + x1/k36 + k2/k37 + k3/k38)))**k42)) + (-1)*k10*k50*(x8 - x10*x14/k51)/(k52 + x8 + k53*x14/(k51*k54) + k55*x10/(k51*k54) + x8*x10/k56 + x10*x14/(k54*k51)) + (-1)*k10*k8*x8)/k10),
  Eq(Derivative(x9, t), ((-1)*k10*k43*(x10*x9 - x11*x5/k44) + 1*k10*k45*(x13*x12 - x9*x10/k46) + (-1)*k10*k8*x9)/k10),
  Eq(Derivative(x10, t), ((-1)*k10*k43*(x10*x9 - x11*x5/k44) + 1*k10*k45*(x13*x12 - x9*x10/k46) + 1*k10*k47*(x12*x11 - x5*x10/k48) + 1*k10*k50*(x8 - x10*x14/k51)/(k52 + x8 + k53*x14/(k51*k54) + k55*x10/(k51*k54) + x8*x10/k56 + x10*x14/(k54*k51)) + (-1)*k10*k57*(x10*k6 - x15*k7/k58)/((k59*(1 + x15/k60) + x10)*(k61*(1 + k7/k62) + k6)) + 1*k10*k63*(x14 - x10/k64)/(k65*(1 + x10/k66) + x14) + 1*k10*k67 + (-1)*k10*k8*x10)/k10),
  Eq(Derivative(x11, t), (1*k10*k43*(x10*x9 - x11*x5/k44) + (-1)*k10*k47*(x12*x11 - x5*x10/k48) + (-1)*k10*k102*x11**k103*x1**k104/((k105 + x11**k103)*(k106 + x1**k104)) + (-1)*k10*k8*x11)/k10),
  Eq(Derivative(x12, t), ((-1)*k10*k45*(x13*x12 - x9*x10/k46) + (-1)*k10*k47*(x12*x11 - x5*x10/k48) + 1*k10*k119*(x18 - x12/k120) + (-1)*k10*k8*x12)/k10),
  Eq(Derivative(x13, t), ((-1)*k10*k45*(x13*x12 - x9*x10/k46) + 1*k10*k117*(x18 - x13/k118) + (-1)*k10*k121*x13/(k122 + x13) + (-1)*k10*k8*x13)/k10),
  Eq(Derivative(x14, t), (1*k10*k50*(x8 - x10*x14/k51)/(k52 + x8 + k53*x14/(k51*k54) + k55*x10/(k51*k54) + x8*x10/k56 + x10*x14/(k54*k51)) + (-1)*k10*k63*(x14 - x10/k64)/(k65*(1 + x10/k66) + x14) + (-1)*k10*k68*x14/(k69 + x14) + (-1)*k10*k8*x14)/k10),
  Eq(Derivative(x15, t), (1*k10*k57*(x10*k6 - x15*k7/k58)/((k59*(1 + x15/k60) + x10)*(k61*(1 + k7/k62) + k6)) + (-1)*k10*k70*(k2*x15 - k1*x16/k71)/((k72*(1 + k1/k73) + k2)*(k74*(1 + x16/k75) + x15)) + (-1)*k10*k8*x15)/k10),
  Eq(Derivative(x16, t), (1*k10*k70*(k2*x15 - k1*x16/k71)/((k72*(1 + k1/k73) + k2)*(k74*(1 + x16/k75) + x15)) + (-1)*k10*k76*x16/(k77 + x16) + (-1)*k10*k78*(x16 - x17/k79)/(k80*(1 + x17/k81) + x16) + (-1)*k10*k8*x16)/k10),
  Eq(Derivative(x17, t), (1*k10*k78*(x16 - x17/k79)/(k80*(1 + x17/k81) + x16) + (-1)*k10*k82*(x17 - x1/k83)/(k84*(1 + x1/k85) + x17) + (-1)*k10*k8*x17)/k10),
  Eq(Derivative(x18, t), (1*k10*k112*x7*k4/((x7 + k113)*(k4 + k114*(1 + k5/k115)*(1 + k1/k116))) + (-1)*k10*k117*(x18 - x13/k118) + (-1)*k10*k119*(x18 - x12/k120) + (-1)*k10*k8*x18)/k10),
  Eq(Derivative(x19, t), (1*k10*k107*x4**k108/(k109*(1 + x19/k110) + x4**k108) + (-1)*k10*k129*x19/(k130*(1 + x20/k131) + x19) + (-1)*k10*k132*x19/(k133 + x19) + (-1)*k10*k8*x19)/k10),
  Eq(Derivative(x20, t), (1*k10*k129*x19/(k130*(1 + x20/k131) + x19) + (-1)*k10*k134*x20/(k135 + x20) + (-1)*k139*k140*x23**k143/(k141**k143 + x23**k143)*x20/(k142 + x20) + (-1)*k10*k8*x20)/k10),
  Eq(Derivative(x21, t), ((-1)*k136*k137*x21/(k138 + x21) + 1*k9*k148*(x22 - x21/k149) + (-1)*k10*k8*x21)/k10),
  Eq(Derivative(x22, t), ((-1)*k9*k148*(x22 - x21/k149) + 1*k9*k8*(k152 - x22))/k9),
  Eq(Derivative(x23, t), (1*k136*k137*x21/(k138 + x21) + (-1)*k139*k140*x23**k143/(k141**k143 + x23**k143)*x20/(k142 + x20) + (-1)*k144*k145*x23/(k146 + x23)*x24/(k147 + x24) + (-1)*k10*k8*x23)/k10),
  Eq(Derivative(x24, t), (1*k139*k140*x23**k143/(k141**k143 + x23**k143)*x20/(k142 + x20) + (-1)*k144*k145*x23/(k146 + x23)*x24/(k147 + x24) + (-1)*k10*k8*x24)/k10),
  Eq(Derivative(x25, t), (1*k144*k145*x23/(k146 + x23)*x24/(k147 + x24) + (-1)*k10*k150*(x25 - x26/k151) + (-1)*k10*k8*x25)/k10),
  Eq(Derivative(x26, t), (1*k10*k150*(x25 - x26/k151) + (-1)*k9*k8*x26)/k9) ]