[ Diff(x[1], t) = 0,
  Diff(x[2], t) = ((-1)*x[2]*x[10]*k[2] + (-1)*x[2]*k[3] + (-1)*x[2]*x[4]*k[6] + 1*x[5]*k[7] + 1*x[8]*k[11] + (-1)*x[2]*x[6]*k[12] + 1*x[7]*k[13])/k[1],
  Diff(x[3], t) = (1*x[2]*x[10]*k[2] + (-1)*x[3]*k[4])/k[1],
  Diff(x[4], t) = ((-1)*x[2]*x[4]*k[6] + 1*x[5]*k[7])/k[1],
  Diff(x[5], t) = (1*x[2]*x[4]*k[6] + (-1)*x[5]*k[7])/k[1],
  Diff(x[6], t) = ((-1)*x[2]*x[6]*k[12] + 1*x[7]*k[13])/k[1],
  Diff(x[7], t) = (1*x[2]*x[6]*k[12] + (-1)*x[7]*k[13])/k[1],
  Diff(x[8], t) = (1*x[4]*k[8] + 1*x[5]*k[9] + (-1)*x[8]*k[10])/k[1],
  Diff(x[9], t) = (1*x[6]*k[14] + 1*x[7]*k[15] + (-1)*x[9]*k[16])/k[1],
  Diff(x[10], t) = ((-1)*x[2]*x[10]*k[2] + 1*x[3]*k[4] + (-1)*x[10]*k[5] + 1*x[9]*k[17])/k[1] ]