Unit 1-Expressions, Equations, Inequalities

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What is an expression in mathematics?

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An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

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What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equal sign (=).

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What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other, using symbols like >, <, ≥, or ≤.

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The first step is to distribute -4 to a and -5.

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What does it mean to distribute in algebra?

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To distribute means to multiply each term inside a parenthesis by the term outside the parenthesis.

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What is the purpose of combining like terms?

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Combining like terms simplifies an expression by merging terms that have the same variable raised to the same power.