[ Diff(x[1], t) = (1*k[1]*k[2] + (-1)*x[8]*k[3]/(1 + k[4]/k[12])*x[1]/(x[1] + k[5]*(1 + k[11]/k[6])/(1 + k[4]/k[12])) + (-1)*x[9]*(59/100000 + 31/500*x[7]^(29/10)/(32^(29/10) + x[7]^(29/10)))*x[1]/(1 + k[11]/k[7]))/k[1],
  Diff(x[2], t) = 0,
  Diff(x[3], t) = 0,
  Diff(x[4], t) = 0,
  Diff(x[5], t) = 0,
  Diff(x[6], t) = 0,
  Diff(x[7], t) = 0/k[1],
  Diff(x[8], t) = 0/k[1],
  Diff(x[9], t) = 0/k[1] ]