# DSolve error — fewer dependent variables than equations

I try to solve this equation:

DSolve[k'[t] == s k[t]^a - (n + b) k[t], k[t], t]

{{k[t] -> E^(-6 t) C[1]}}


But now I try this:

DSolve[{k'[t] == s k[t]^a - (n + b) k[t], k'[t] == 0}, k[t], t]


And got an error:

DSolve: There are fewer dependent variables than equations, so the system is overdetermined.

Please, help me. What should I do?

• Please provide the values of s,a,n,b. – Ulrich Neumann Jan 21 '19 at 15:15
• you meant k'[0] == 0 (not k'[t] == 0)? – kglr Jan 21 '19 at 15:16
• s = 0.299, a = 0.35, n = 0.01, b = 0.1 – Тихон Сластен Jan 21 '19 at 15:18

s = 0.299; a = 0.35; n = 0.01; b = 0.1;