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. It typically involves addition or subtraction followed by multiplication or division.

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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 eliminate any addition or subtraction, then eliminate any multiplication or division.

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x = 165

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w = 2

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x = 70

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a = -6

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x = 15

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Subtract 3 from both sides to isolate the term with x.

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What does it mean to 'check your solution' in an equation?

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To check your solution, substitute the value back into the original equation to verify that both sides are equal.

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What is the inverse operation of addition?

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The inverse operation of addition is subtraction.