Fall Interim Review 4: Solve equations & inequalities

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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. Examples include <, >, ≤, and ≥.

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What does it mean to solve an equation?

Back

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

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Back

Distribute the constants to simplify both sides of the inequality.

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Back

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How do you eliminate fractions in an equation?

Back

You can eliminate fractions by multiplying both sides of the equation by the least common denominator (LCD) of all the fractions.

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Back

Multiply both sides by 2 to eliminate the fraction.

Front

What is the process to isolate a variable in an equation?

Back

To isolate a variable, perform inverse operations to both sides of the equation until the variable is alone on one side.

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Divide each term by 4 to isolate y.

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What does it mean for an equation to be true?

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An equation is true when both sides of the equation have the same value for a given variable.