Expressions: Evaluate and Simplify

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What is the process of simplifying an expression?

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The process of simplifying an expression involves combining like terms and reducing the expression to its simplest form.

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What are like terms in an expression?

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting the variables with given numbers.

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What is a variable in an expression?

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A variable is a symbol, often a letter, that represents an unknown value in an expression or equation.

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