y[n]=0.25y[n-1]+3x[n]-x[n-1]

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Solution for y[n]=0.25y[n-1]+3x[n]-x[n-1] equation:


Simplifying
y[n] = 0.25y[n + -1] + 3x[n] + -1x[n + -1]

Multiply y * n
ny = 0.25y[n + -1] + 3x[n] + -1x[n + -1]

Reorder the terms:
ny = 0.25y[-1 + n] + 3x[n] + -1x[n + -1]
ny = [-1 * 0.25y + n * 0.25y] + 3x[n] + -1x[n + -1]

Reorder the terms:
ny = [0.25ny + -0.25y] + 3x[n] + -1x[n + -1]
ny = [0.25ny + -0.25y] + 3x[n] + -1x[n + -1]

Multiply x * n
ny = 0.25ny + -0.25y + 3nx + -1x[n + -1]

Reorder the terms:
ny = 0.25ny + -0.25y + 3nx + -1x[-1 + n]
ny = 0.25ny + -0.25y + 3nx + [-1 * -1x + n * -1x]

Reorder the terms:
ny = 0.25ny + -0.25y + 3nx + [-1nx + 1x]
ny = 0.25ny + -0.25y + 3nx + [-1nx + 1x]

Reorder the terms:
ny = 3nx + -1nx + 0.25ny + 1x + -0.25y

Combine like terms: 3nx + -1nx = 2nx
ny = 2nx + 0.25ny + 1x + -0.25y

Solving
ny = 2nx + 0.25ny + 1x + -0.25y

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-2nx' to each side of the equation.
-2nx + ny = 2nx + 0.25ny + 1x + -2nx + -0.25y

Reorder the terms:
-2nx + ny = 2nx + -2nx + 0.25ny + 1x + -0.25y

Combine like terms: 2nx + -2nx = 0
-2nx + ny = 0 + 0.25ny + 1x + -0.25y
-2nx + ny = 0.25ny + 1x + -0.25y

Add '-0.25ny' to each side of the equation.
-2nx + ny + -0.25ny = 0.25ny + 1x + -0.25ny + -0.25y

Combine like terms: ny + -0.25ny = 0.75ny
-2nx + 0.75ny = 0.25ny + 1x + -0.25ny + -0.25y

Reorder the terms:
-2nx + 0.75ny = 0.25ny + -0.25ny + 1x + -0.25y

Combine like terms: 0.25ny + -0.25ny = 0.00
-2nx + 0.75ny = 0.00 + 1x + -0.25y
-2nx + 0.75ny = 1x + -0.25y

Reorder the terms:
-2nx + 0.75ny + -1x + 0.25y = 1x + -1x + -0.25y + 0.25y

Combine like terms: 1x + -1x = 0
-2nx + 0.75ny + -1x + 0.25y = 0 + -0.25y + 0.25y
-2nx + 0.75ny + -1x + 0.25y = -0.25y + 0.25y

Combine like terms: -0.25y + 0.25y = 0.00
-2nx + 0.75ny + -1x + 0.25y = 0.00

The solution to this equation could not be determined.

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