Why do we use letters like x and y to represent numbers in algebra?

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Why do we use letters like x and y to represent numbers in algebra?

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Anonymous 0 Comments

I remember one year in elementary school, where the unknown was always listed as “n”. No idea why as every year afterwards was x and y. I do remember wondering why they switched from n, when we were used to it. This was back in the “60s, so I have no idea if that is still a thing.

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