[ Diff(x[1], t) = ((-1)*k[1]*x[1] + 1*(1 - k[9])*k[6]*x[1]*(1 - (x[1] + x[2] + x[3])/k[5]))/k[14],
  Diff(x[2], t) = (1*k[9]*k[6]*x[1]*(1 - (x[1] + x[2] + x[3])/k[5]) + (-1)*k[2]*x[2] + 1*(1 - k[13])*k[10]*x[2]*(1 - (x[1] + x[2] + x[3])/k[5]))/k[14],
  Diff(x[3], t) = (1*k[13]*k[10]*x[2]*(1 - (x[1] + x[2] + x[3])/k[5]) + (-1)*k[3]*x[3])/k[14] ]