Exam 2: Review of Basic Algebra

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Compute the value of (four decimal places): Compute the value of (four decimal places):

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Simplify: -5(8a - b) - 2(-6a + 9b)

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Express in exponential form: log10 Express in exponential form: log10   = -2 = -2

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Solve: 0.04x = 37

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Simplify: [(1 - r)51]2

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Simplify: (7a - 7b) - (-3a + 9b) - 11b

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Compute: 1.28-5/14

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Solve: - Solve: -   x = 15 x = 15

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Simplify: 7m - 2m - 3m

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Evaluate: 4x2 - 10xy - 8y2 for x = -3, y = 5

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Simplify: (-1)4(-1)2(-1)5

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Solve: 51 - 14x = -34 - x

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A rubber tube 120 cm long is cut into two pieces so that the longer piece is 30 cm longer than twice the length of the shorter piece. What is the length of the longer piece?

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