Properties of Equality (Isolating Variables)

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What is the Property of Equality?

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The Property of Equality states that if two expressions are equal to each other, then they can be manipulated in the same way without changing the equality.

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What does it mean to isolate a variable?

Back

Isolating a variable means rearranging an equation so that the variable is on one side of the equation and all other terms are on the other side.

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Back

n = 26

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n = 7,188

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n = 33

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n = 38

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Back

n = 13.62

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What is the first step in solving an equation?

Back

The first step is to simplify both sides of the equation if possible.

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What operation can you use to both sides of an equation?

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You can add, subtract, multiply, or divide both sides of an equation by the same number.

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What is the goal when solving an equation?

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The goal is to find the value of the variable that makes the equation true.