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Systems of equations

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Systems of equations: trolls, tolls (1 of 2)Systems of equations: trolls, tolls (2 of 2)Testing a solution to a system of equationsSystems of equations with graphing: y=7/5x-5 & y=3/5x-1Systems of equations with graphing: exact & approximate solutionsSetting up a system of equations from context example (pet weights)Setting up a system of linear equations example (weight and price)Interpreting points in context of graphs of systems
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Solutions of systems of equationsGet 3 of 4 questions to level up!
Systems of equations with graphingGet 3 of 4 questions to level up!
Creating systems in contextGet 3 of 4 questions to level up!
Interpret points relative to a systemGet 3 of 4 questions to level up!
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Systems of equations with substitution: potato chipsSystems of equations with substitution: -3x-4y=-2 & y=2x-5Substitution method review (systems of equations)
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Systems of equations with substitutionGet 3 of 4 questions to level up!
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Systems of equations with elimination: King's cupcakesWhy can we subtract one equation from the other in a system of equations?Elimination strategiesSystems of equations with elimination: x-4y=-18 & -x+3y=11Systems of equations with elimination: potato chipsSystems of equations with elimination (and manipulation)Elimination method review (systems of linear equations)Worked example: equivalent systems of equationsWorked example: non-equivalent systems of equationsEquivalent systems of equations review
Practice
Combining equationsGet 3 of 4 questions to level up!
Elimination strategiesGet 3 of 4 questions to level up!
Systems of equations with eliminationGet 3 of 4 questions to level up!
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Systems of equations number of solutions: fruit prices (1 of 2)Systems of equations number of solutions: fruit prices (2 of 2)Solutions to systems of equations: consistent vs. inconsistentSolutions to systems of equations: dependent vs. independentNumber of solutions to a system of equationsNumber of solutions to a system of equations graphicallyNumber of solutions to a system of equations algebraicallyHow many solutions does a system of linear equations have if there are at least two?Number of solutions to system of equations review
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Age word problem: ImranAge word problem: Ben & WilliamAge word problem: Arman & DiyaSystem of equations word problem: walk & rideSystem of equations word problem: no solutionSystem of equations word problem: infinite solutionsSystems of equations with elimination: TV & DVDSystems of equations with elimination: apples and orangesSystems of equations with substitution: coinsSystems of equations with elimination: coffee and croissants
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Age word problemsGet 3 of 4 questions to level up!
Systems of equations word problemsGet 3 of 4 questions to level up!

About this unit

In this unit, we learn how to write systems of equations, solve those systems, and interpret what those solutions mean.