UNIT 6 REVIEW

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What does it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of their variables.

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What is the distributive property in mathematics?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by two or more terms inside a set of parentheses.

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What is the first step in solving an equation?

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The first step is to simplify both sides of the equation as much as possible.

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What is a variable in mathematics?

Back

A variable is a symbol used to represent a number that can change or vary.

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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 specific numbers.

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What is the purpose of parentheses in mathematical expressions?

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Parentheses indicate which operations should be performed first in an expression.

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