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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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 = 25

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x = 9

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x = 16

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x = -84

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x = 6

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Multiply both sides by 5 to eliminate the fraction.

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

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Inverse operations are used to reverse the effects of addition, subtraction, multiplication, or division to isolate the variable.

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

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Checking your solution means substituting the value back into the original equation to verify that both sides are equal.