Unit 7 Review: Equations and Inequalities

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What is an equation?

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An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

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What does it mean to solve an equation?

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To solve an equation means to find the value(s) of the variable(s) that make the equation true.

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What is an inequality?

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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.

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What is a variable in mathematics?

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A variable is a symbol, often a letter, that represents an unknown number or value.

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True or False: A variable can be any letter that represents an unknown number.

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True

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What is the solution set of an inequality?

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The solution set of an inequality is the set of all values that satisfy the inequality.