{ x33 = k138*exp((-k72)*t),
  x34 = k76 - k74*(x33 - k138*exp((-k77)*k138*t)),
  x57 = x4 + x7 + x14 + x20 + x21,
  x58 = x8 + x10 + x11 + x22 + x23*0 + x36*0 + x19*0,
  x59 = x39 + x41 + x42,
  x60 = 20*x12,
  1*k139*x6 + 1*k139*x7 + 1*k139*x10 + 1*k139*x11 + 1*k139*x14 + 1*k139*x20 + 1*k139*x21 + 1*k139*x22 + 1*k139*x23 = k139*k141,
  1*k139*x12 + 1*k139*x54 = k139*k142,
  1*k139*x13 + 1*k139*x55 = k139*k143,
  1*k139*x37 + 1*k139*x38 = k139*k144 }