Unit 2 Review Equations, Inequalities

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What is an equation?

Back

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

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What is an inequality?

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An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, greater than or equal to, or less than or equal to the other.

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How do you solve a linear equation?

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To solve a linear equation, isolate the variable on one side of the equation using inverse operations (addition, subtraction, multiplication, division) until the variable is alone.

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What does it mean to isolate a variable?

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Isolating a variable means rearranging an equation so that the variable is on one side and all other terms are on the opposite side.

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How do you represent a situation with an inequality?

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You can represent a situation with an inequality by identifying the quantities involved and determining the relationship (greater than, less than) between them.

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How can you express the relationship between Nancy and Margie's reading progress?

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What does it mean when two expressions are equal in an equation?

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It means that the values of the expressions are the same for the variable(s) involved.