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Mathematical statement that may contain variables, constants, and/or operations.
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A mathematical statement that may contain only constants and/or operations.
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The process used to simplify an expression by adding or subtracting terms.
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The process of rearranging a formula to isolate a desired variable.
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An equation with two or more variables.
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The (positive) distance a number is from zero.
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A number used to multiply a variable (number attached to a letter).
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To multiply out the parts of an expression.
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The process of substituting numbers in for variables and then simplifying the expression.
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A letter or symbol used to represent a value that can change.
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A value that does not change (number with no letter attached).
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An equation that is always true no matter what value is substituted for the variable.
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A value of the variable that make the equation true.
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A mathematical statement that two expressions are equal.
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An equation that states a rule for a relationship among quantities.
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A constant, variable, or the product of constant and variable (each piece of an expression).
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