Solving 2-step Equations

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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.

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How do you isolate a variable in a two-step equation?

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To isolate a variable, perform the inverse operations in reverse order: first undo addition or subtraction, then undo multiplication or division.

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x = -27

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g = 8

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x = 5

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n = -5

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m = 100

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Subtract 5 from both sides to isolate x.

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What does it mean to 'undo' an operation in algebra?

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To 'undo' an operation means to perform the opposite operation, such as subtracting to undo addition.

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x = 3