There is only one dependent variable and that is y --- z(t) must be a known function of t
Since z depends on t simply separate the variables
dy = z(t)dt
y = integral (z(t)dt)
My mind has just gone blank - can anyone please tell me the name of the method used to solve this?
Can't remember what you do when there are two dependent variables..guessing I don't just add a constant of integration?
Thanks in advance!