Two 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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Add 4 to both sides of the equation.

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x = -9.

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What does it mean to isolate a variable in an equation?

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

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a = 18.

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Subtract 5 from both sides of the equation.

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Divide both sides by 3 to find c.

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c = 6.

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What is the purpose of using inverse operations in solving equations?

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Inverse operations are used to undo the operations applied to the variable, helping to isolate it.