If I arbitrarily label the point between the two delay elements as v(n), I come up with the two equations:
y(n)=v(n)+4v(n)
x(n)=v(n+1) + 3v(n) + 2v(n-1)
Then the task is to eliminate v(n) from those two equations. But I'm completely stuck on that. Any help would be fantastic. I've been pulling my hair out for hours today working on this.
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