Q2 Practice Test (2024)

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To solve for x, multiply both sides by 3: x = 9 * 3 = 27.

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To solve for x, subtract 5 from both sides: x = 14 - 5 = 9.

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To solve for x, add 3 to both sides: 4x = 16. Then divide both sides by 4: x = 4.

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To solve for x, cross-multiply: 3 * 8 = 4 * x. Thus, x = 6.

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Definition of a variable in an equation.

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A symbol (often a letter) that represents an unknown value in mathematical expressions or equations.

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What is an equation?

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A mathematical statement that asserts the equality of two expressions, typically containing variables.

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What does it mean to solve an equation?

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Finding the value(s) of the variable(s) that make the equation true.

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What is a proportion?

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An equation that states that two ratios are equal.

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How do you isolate a variable in an equation?

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By performing inverse operations to get the variable alone on one side of the equation.