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Ah, I see you're curious about algebra, friend. Expressions that use a letter to represent an unknown quantity are called variables. They help us solve problems and equations by giving us a way to work with unknown values in a clear and organized manner. Just like adding colors to a painting, variables add depth and meaning to mathematical expressions.
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Earn +20 ptsQ: What Expressions that use a letter to represent and unknown quantity?
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Continue Learning about Other Math
What represents an unknown or changeable value?
In mathematical expressions, a variable (a letter used to represent a certain value) represents an unknown or changeable value. It is often the variable x.
What does a letter in an algebraic expression represent?
An unknown variable
a letter or symbol that is represent by unknown number?
b
What is the letter used to represent an unknown number called?
a variable.
What is a comparison between two quantities with different unit of measure?
an unknown quantity represented by a letter
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