Algebra 2-Step & Multi-Step Equations Review

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What is a two-step equation?

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A two-step equation is an algebraic equation that requires two operations to solve for the variable. For example, in the equation 2x + 3 = 7, you would first subtract 3 from both sides and then divide by 2.

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How do you isolate a variable in an equation?

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To isolate a variable, you perform inverse operations to both sides of the equation. For example, in the equation x + 5 = 10, you would subtract 5 from both sides to get x = 5.

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What is a multi-step equation?

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A multi-step equation is an equation that requires more than two steps to solve. It often involves combining like terms, distributing, and using inverse operations.

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x = 19.5

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x = 0.25 or x = rac{1}{4}.

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What does it mean to combine like terms?

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Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power. For example, in 3x + 2x, you combine to get 5x.

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What is the distributive property?

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The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by each term inside a parenthesis.

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x = -25.

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What is the first step in solving a multi-step equation?

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The first step is often to simplify both sides of the equation by combining like terms or using the distributive property.

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k = 2.1.