For the given figure, which of the following options is correct input output equation?
1
y[n] = x[n] + x[n – 1]
2
2y[n] = 4x[n] + 3x[n - 1]
3
2y[n] – y[n - 1] = 4x[n] + 2x[n - 1]
4
y[n] – y[n - 1] = 4x[n] + 2x[n - 1]
For the given figure, which of the following options is correct input output equation?