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Algebra 1 Unit 2 Vocabulary

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Across
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Two or more inequalities that represent the constraints in the same situation form a system of inequalities.
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Two systems are equivalent if they share the exact same solution set.
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Equations that have the exact same solutions.
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A method of solving a system of two equations in two variables where you add or subtract a multiple of one equation to another in order to get an equation with only one of the variables (thus eliminating the other variable).
Down
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Two or more equations that represent the constraints in the same situation form a system of equations.
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___ is replacing a variable with an expression it is equal to.
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A limitation on the possible values of variables in a model, often expressed by an equation or inequality or by specifying that the value must be an integer.
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A mathematical or statistical representation of a problem from science, technology, engineering, work, or everyday life, used to solve problems and make decisions.