A global warming model leads to the following equation for the average temperature of the

Earth's surface:

dT/dt = k_{1}exp(k_{2}t) - k_{3}(T-T_{0});

where k1, k2, k3 are positive constants. Determine T(t), assuming that T(1) = T_{0}.

Any assistance would be appreciated (:

My lecturer did not explain how to solve these equations very well and I have tried searching all over the internet for help on solving these equations but I have been unsuccessful and/or lead to more confusion.