A-REI.6
Solve systems of linear equations algebraically, exactly, and graphically while focusing on pairs of linear equations in two variables.
Example Problems
How many solutions does this system of equations have?
How many solutions does this system of equations have?
How many solutions does this system of equations have?
Khan Academy ResourcesElimination method review (systems of linear equations)Number of solutions to system of equations reviewSubstitution method review (systems of equations)Systems of equations with substitutionAge word problemsSystems of equations with graphingSystems of equations with substitutionSystems of equations with eliminationSystems of equations with elimination challengeElimination strategiesSystems of equations word problemsNumber of solutions to a system of equations graphicallyCreating systems in contextSystems of equations word problems (with zero and infinite solutions)Number of solutions to a system of equations algebraicallyCombining equationsSolutions of systems of equationsSystems of equations: trolls, tolls (2 of 2)Systems of equations: trolls, tolls (1 of 2)Systems of equations with graphing: y=7/5x-5 & y=3/5x-1Systems 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 number of solutions: fruit prices (1 of 2)Systems of equations with substitution: -3x-4y=-2 & y=2x-5Systems of equations number of solutions: fruit prices (2 of 2)Age word problem: Ben & WilliamAge word problem: Arman & DiyaAge word problem: ImranSystems of equations with elimination (and manipulation)Systems of equations with substitution: y=-1/4x+100 & y=-1/4x+120Systems of equations with substitution: y=4x-17.5 & y+2x=6.5Systems of equations with substitution: 9x+3y=15 & y-x=5Systems of equations with elimination: TV & DVDTesting a solution to a system of equationsSystems of equations with substitution: 2y=x+7 & x=y-4Systems of equations with substitution: y=-5x+8 & 10x+2y=-2Systems of equations with substitution: coinsSystems of equations with elimination: coffee and croissantsNumber of solutions to a system of equations algebraicallyElimination strategiesSystem of equations word problem: infinite solutionsSystems of equations with elimination: apples and orangesSystem of equations word problem: no solutionSystem of equations word problem: walk & rideSystems of equations with graphing: exact & approximate solutions
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