Two Step Equations

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What is a two-step equation?

Back

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?

Back

To isolate a variable, perform the inverse operations in reverse order: first eliminate the constant term, then the coefficient of the variable.

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x = 78

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x = -84

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x = 25

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x = 9

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x = 6

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Add 7 to both sides to eliminate the constant term.

Front

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

Back

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

Front

What does it mean to 'isolate the variable'?

Back

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