9/5 One Step Multiply and Divide

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y = 40

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v = 12

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r = 72

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x = -24

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x = -12

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What does it mean to multiply both sides of an equation by a number?

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It means to perform the same operation on both sides to maintain equality.

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What is the principle of inverse operations in solving equations?

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Using the opposite operation to isolate the variable.

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Multiply both sides by b to isolate a.

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

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Substitute the solution back into the original equation.

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What is the definition of a variable in mathematics?

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A symbol used to represent an unknown value.