Equations

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What is an equation?

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An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables.

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What does it mean to solve an equation?

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To solve an equation means to find the value(s) of the variable(s) that make the equation true.

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Subtracting 25 from both sides.

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How do you isolate a variable in an equation?

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You perform inverse operations to both sides of the equation to get the variable by itself.

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What does it mean to check your solution?

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To check your solution means to substitute the value back into the original equation to verify it makes the equation true.

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What is a variable in an equation?

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A variable is a symbol, often a letter, that represents an unknown value in an equation.