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Variables are quantities of values that are not yet known. We don't know what value they have and it's going to depend on other values in the problem. Here are a few examples.
Variables are usually represented by lowercase letters in italics, like x or y, though in reality any letter or symbol without a specific mathematical meaning can be used.
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are they teaching to pre nursery students...:)
saurabhdce10 2 years ago
Great videos! I'm learning a lot. I look forward to more lessons in the future.
historytrivia001 2 years ago