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Solve the system of equations using the addition method.
-x + y = -2 5x + 2y + 2z = -11
X - z = 6
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Employees who work for local, state, or federal governments, performing a wide range of public service duties.
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The median of the lower half of a data set, marking the 25th percentile.
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Numeric representations of an individual's performance on a standardized test.
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Appliances used for keeping food and drinks cold.
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