Writing One-Step Equations (ADV)

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What is a one-step equation?

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A one-step equation is an algebraic equation that can be solved in a single step, typically by performing an inverse operation to isolate the variable.

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How do you represent a situation with a one-step equation?

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You identify the unknown quantity, assign a variable to it, and then create an equation based on the relationship described in the situation.

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Write an equation for: A sleeping bag weighs 22 lbs. Your backpack and sleeping bag together weigh 31 pounds.

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Write an equation for: Tyler’s grade dropped seven points this semester. Now his grade is a 75.

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What does it mean for a value to be a solution of an equation?

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A value is a solution of an equation if, when substituted for the variable, it makes the equation true.

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Front

Write an equation for: Andy is half as old as his dad, who is 56 years old.

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What is the inverse operation for addition?

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The inverse operation for addition is subtraction.

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What is the inverse operation for subtraction?

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The inverse operation for subtraction is addition.