1. The problem statement, all variables and given/known data R = C = 1; 2. Relevant equations G(S) = 1/(s+1) 3. The attempt at a solution Suppose R = C = 1 then the transfer function from the input voltage to the voltage across the capacitor is 1/ (s+1). So Vc(S) / V(S) = 1/(s+1). Getting back to time-domain: Vc(t) = V(t) * e^-t. What's wrong here? It should have been V(t) ( 1 - e^-t ). Thank you!