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it is easier to substitute them for letters because if we used numbers then constants (numbers in algebra that don't have letters) would get mixed up with the algebraic letters. also makes things easier to read and to understand. also, if you don't have all the information, you can use letters to represent what you don't know
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Earn +20 ptsQ: Why are letters used in algebra?
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Continue Learning about Algebra
What are the letters in algebra called?
variables
What words are used to describe algebra?
Algebra is a type of math that uses both numbers and letters (variables) to achieve the answer. Some words that would describe algebra could be; logical, precise, confusing, complicated and rigorous.
What does algebra consist of?
Lots of letters and numbers
Letters together in algebra?
If you have letters together, like xy +2, it means you multiply
How are unknowns shown in Algebra?
Unknowns are represented by letters
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