A.EI.2.b
Apply the properties of real numbers and/or properties of equality to solve a system of two linear equations in two variables, algebraically and graphically.
Example Problems
What is the result of adding these two equations?
What is the result of adding these two equations?
What is the result of adding these two equations?
Khan Academy ResourcesEquivalent systems of equations reviewElimination method review (systems of linear equations)Systems of equations with eliminationSystems of equations with elimination challengeElimination strategiesSystems of equations word problems (with zero and infinite solutions)Reasoning with systems of equationsCombining equationsComparing linear rates word problemsSystems of equations with elimination: x-4y=-18 & -x+3y=11Systems of equations with elimination: King's cupcakesSystems of equations with elimination: potato chipsSystems of equations with substitution: potato chipsSystems of equations with elimination (and manipulation)Systems of equations with elimination: TV & DVDSolutions to systems of equations: consistent vs. inconsistentWhy can we subtract one equation from the other in a system of equations?Reasoning with systems of equationsWorked example: equivalent systems of equationsWorked example: non-equivalent systems of equationsSystems of equations with elimination: coffee and croissantsComparing linear rates exampleElimination strategiesSystems of equations with elimination: apples and oranges
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