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Simplifying y[n] + -0.1y[n + -1] + -0.2y[n + -2] = x[n] Multiply y * n ny + -0.1y[n + -1] + -0.2y[n + -2] = x[n] Reorder the terms: ny + -0.1y[-1 + n] + -0.2y[n + -2] = x[n] ny + [-1 * -0.1y + n * -0.1y] + -0.2y[n + -2] = x[n] Reorder the terms: ny + [-0.1ny + 0.1y] + -0.2y[n + -2] = x[n] ny + [-0.1ny + 0.1y] + -0.2y[n + -2] = x[n] Reorder the terms: ny + -0.1ny + 0.1y + -0.2y[-2 + n] = x[n] ny + -0.1ny + 0.1y + [-2 * -0.2y + n * -0.2y] = x[n] Reorder the terms: ny + -0.1ny + 0.1y + [-0.2ny + 0.4y] = x[n] ny + -0.1ny + 0.1y + [-0.2ny + 0.4y] = x[n] Reorder the terms: ny + -0.1ny + -0.2ny + 0.1y + 0.4y = x[n] Combine like terms: ny + -0.1ny = 0.9ny 0.9ny + -0.2ny + 0.1y + 0.4y = x[n] Combine like terms: 0.9ny + -0.2ny = 0.7ny 0.7ny + 0.1y + 0.4y = x[n] Combine like terms: 0.1y + 0.4y = 0.5y 0.7ny + 0.5y = x[n] Multiply x * n 0.7ny + 0.5y = nx Solving 0.7ny + 0.5y = nx 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. 0.7ny + -1nx + 0.5y = nx + -1nx Reorder the terms: -1nx + 0.7ny + 0.5y = nx + -1nx Combine like terms: nx + -1nx = 0 -1nx + 0.7ny + 0.5y = 0 Add '-0.5y' to each side of the equation. -1nx + 0.7ny + 0.5y + -0.5y = 0 + -0.5y Combine like terms: 0.5y + -0.5y = 0.0 -1nx + 0.7ny + 0.0 = 0 + -0.5y -1nx + 0.7ny = 0 + -0.5y Remove the zero: -1nx + 0.7ny = -0.5y Combine like terms: -0.5y + 0.5y = 0.0 -1nx + 0.7ny + 0.5y = 0.0 The solution to this equation could not be determined.
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