8.EE.C.8.b
Solve systems of two linear equations in two variables algebraically, and estimate solutions by graphing the equations including cases of no solution and infinite number of solutions. Solve simple cases by inspection.
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 ResourcesNumber of solutions to system of equations reviewSubstitution method review (systems of equations)Systems of equations with substitutionSystems of equations with graphingSystems of equations with substitutionSystems of equations word problemsNumber of solutions to a system of equations graphicallyNumber of solutions to a system of equations algebraicallySolutions of systems of equationsSystems of equations: trolls, tolls (2 of 2)Systems of equations: trolls, tolls (1 of 2)Systems 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)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 substitution: 2y=x+7 & x=y-4Systems of equations with substitution: y=-5x+8 & 10x+2y=-2Number of solutions to a system of equations algebraically
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