Two 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. 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 the reverse order of operations. First, eliminate any addition or subtraction, then eliminate multiplication or division.

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Translate the sentence: 'Seven more than three times a number is 19.'

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What does it mean to 'translate' a word problem into an equation?

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Translating a word problem involves converting the words into mathematical expressions and equations that represent the relationships described.

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How do you check if your solution to a two-step equation is correct?

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Substitute the solution back into the original equation to see if both sides are equal.

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What is the inverse operation of addition?

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Subtraction.