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Unit 1: 1-1

Operations With Equations

Vocabulary Used in Section:

Variable: A letter or a symbol used to represent a value that can change

Example: x,z,a, π

Constant: A value that does not change

Example: 5, 1/2, 103

Numerical Expression: Contains only constants and operations

Example: 2+3, 4/2

Algebraic Expression: May contain variables, constants, and operations

​​​​​​​Example: 2x+7, 3a/v

Equation: Mathematical statement that two expressions are equal

​​​​​​​Solution of an Equation: A value of the variable that makes the equation true.

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