(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Is the system y[n] = x[n] - x[n-1] time invariant?

2. Relevant equations

3. The attempt at a solution

I say no, but there's one thing I don't understand. I think if you shifted the input, and then ran those samples through the system, you'd get x[n-n0] - x[n-1].

If you ran the signal through the system first, then shifted the output, you'd get x[n-n0] - x[n-n0-1].

This is my thinking, is it incorrect?

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# Homework Help: Signal Processing question

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