Practice Evaluating Expressions in One Variable
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Now, let's practice substituting values for variables. Here are seven practice problems that will allow you to show what you have learned.
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Evaluate \(c-2\) when \(c = 7\).
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Evaluate \(9 - \frac{8}{S}\) when \(S = 4\).
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Evaluate \(\frac{n}{6} + 2\) when \(n = 12\).
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Evaluate \(6h\) when \(h = 8\).
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Evaluate \(6+x\) when \(x = 3\).
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Evaluate \(\frac{9}{m} + 4\) when \(m = 3\).
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Evaluate \(\frac{p}{2} -5\) when \(p = 14\).
Source: Khan Academy, https://www.khanacademy.org/math/in-seventh-grade-math/algebraic-expressions/finding-value-expression/e/evaluating_expressions_1
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