Reass. Solving Equations

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Distribute the 3 to the terms inside the parentheses.

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y = -3

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What does it mean to isolate a variable in an equation?

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To isolate a variable means 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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k = 8

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6y + 42

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x = 8

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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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x = 7

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What does it mean for two expressions to be equivalent?

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Two expressions are equivalent if they have the same value for all values of the variables.

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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 to see if both sides are equal.