10.4 Solving Equations

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Combine like terms on both sides of the equation.

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Divide both sides by -9 after distributing.

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It means to add or subtract coefficients of the same variable.

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n = 0.

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Distribute -4 and combine like terms.

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What is the purpose of checking your solution after solving an equation?

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To verify that the solution satisfies the original equation.

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What is a linear equation?

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What does it mean to 'isolate the variable'?

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

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x = 4.

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What is the significance of the equal sign in an equation?

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It indicates that the expressions on both sides have the same value.