Variable - a symbol, usually a letter, used to represent an unknown value , Co-efficient - A number used to multiply a variable., Term - the values on which mathematical operations occur in an algebraic expression., Constant - A number in an equation with no variable., Equation - a mathematical statement that shows that two mathematical expressions are equal., Expression - a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division., Operator - The four operations of addition (+) , subtraction (−),multiplication (×), division (÷) are used to combine the terms of an expression, Isolate - Performing operations to both sides of an equation to get the variable by itsel, Reciprocal - turn the number upside down (flip), or interchange the numerator and denominator., Inverse  - opposite, Distributive Property - a fundamental property that defines how multiplication operation is distributed over addition and subtraction.,

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