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Algebra 1 Unit 2 Vocabulary

Across
Two or more inequalities that represent the constraints in the same situation form a system of inequalities.
Two systems are equivalent if they share the exact same solution set.
Equations that have the exact same solutions.
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
Two or more equations that represent the constraints in the same situation form a system of equations.
___ is replacing a variable with an expression it is equal to.
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.
A mathematical or statistical representation of a problem from science, technology, engineering, work, or everyday life, used to solve problems and make decisions.