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| Question 237246:  find the general solution for x(n)and y(n)for x(0)=1 and y(0)=0,
 x(n+1)=x(n)+2y(n)
 x(n+1)=3x(n)+2y(n)   n=0,1,2,3,...
 
 
 Answer by rapaljer(4671)
      (Show Source): 
You can put this solution on YOUR website! find the general solution for x(n)and y(n)for x(0)=1 and y(0)=0, x(n+1)=x(n)+2y(n)
 x(n+1)=3x(n)+2y(n)   n=0,1,2,3,...
 
 If n=0, then substitute this into the equation for n:
 x(0+1)=x(0)+2y(0)
 
 Since you know the values of x(0) and y(0), substitute these in below:
 x(1)= 1 + 2*0
 x(1)=1
 
 Now, let n=1, and you have
 x(1+1) = x(1) + 2y(1)
 x(2) = 1 + 2y(1)
 
 Having said all of this, are you sure you stated this correctly?  I see two different formulas for x(n+1), and I don't see any formula for y(n+1).  Maybe the problem is not stated correctly.  Maybe I just don't know where to go from here.
 
 Dr. Robert J. Rapalje, Retired
 Seminole State College of Florida
 Altamonte Springs Campus
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