Writing and Solving Two-Step Equations

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What is a two-step equation?

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How do you isolate a variable in a two-step equation?

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What does it mean to 'solve' an equation?

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To solve an equation means to find the value of the variable that makes the equation true.

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How can you check if your solution to an equation is correct?

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You can check your solution by substituting the value back into the original equation to see if both sides are equal.

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What is the equation for the situation: 331 students went on a field trip, 6 buses filled, and 7 students traveled in a car?

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What does the term 'inverse operation' mean?

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An inverse operation is an operation that reverses the effect of another operation. For example, addition and subtraction are inverse operations.