y[n]=2x[n]-x[n-1]

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Solution for y[n]=2x[n]-x[n-1] equation:


Simplifying
y[n] = 2x[n] + -1x[n + -1]

Multiply y * n
ny = 2x[n] + -1x[n + -1]

Multiply x * n
ny = 2nx + -1x[n + -1]

Reorder the terms:
ny = 2nx + -1x[-1 + n]
ny = 2nx + [-1 * -1x + n * -1x]

Reorder the terms:
ny = 2nx + [-1nx + 1x]
ny = 2nx + [-1nx + 1x]

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

Solving
ny = 1nx + 1x

Solving for variable 'n'.

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

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

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

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

The solution to this equation could not be determined.

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