3-1 Variables on Both Sides (first step)

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Add 4p to both sides.

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Subtract 3n from both sides.

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Subtract 8k from both sides.

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Subtract 6n from both sides.

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Add 4x to both sides.

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Define a variable in an equation.

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A symbol used to represent an unknown value.

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What does it mean to isolate a variable?

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To manipulate an equation so that the variable is on one side and all other terms are on the other.

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What is the purpose of combining like terms in an equation?

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To simplify the equation and make it easier to solve.

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What does it mean to balance an equation?

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To ensure that both sides of the equation are equal by performing the same operation on both sides.

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What is the principle of equality in algebra?

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If you add, subtract, multiply, or divide both sides of an equation by the same number, the two sides remain equal.