Linearize the two equations provided down below ONLY

Write a mathematical model for this process: Fo, Co R, C2 I V V F1, C1 F2, C A first-order reaction A---> Boccurs in both reactors, with reaction rate constant k. The volumes of liquid in the reactors, V, are constant and equal; the flow rates Fo, F1, F2 and Rare constant. Assume constant physical properties and a negligible time delay for the recycle line. Linearize the process model to obtain a transfer function model relating the outlet concentration of A from the second reactor, C2, to the recycle flow variable, R. V*(dC1)/dt + C1*Fo+C1*R-Co*Fo-C2*R+k*C1*V=0 (first equation for the tank) V*(dC2)/dt + C2*F1-C1*F1 = 0 (second equation for the tank) This is for Process Control in Chemical Engineering using 6.19 in Seborg/Edgar/Mellichamp/Doyle's Process Dynamics and Control 4th edition