Khan Academy

Number of solutions to a system of equations algebraically (K-A)

How many solutions does a system of linear equations have if there are at least two? (K-A)

Number of solutions to a system of equations (K-A)

Solutions to systems of equations: consistent vs. inconsistent (K-A)

Solutions to systems of equations: dependent vs. independent (K-A)

Systems of equations number of solutions: fruit prices (1 of 2) (K-A)

Systems of equations number of solutions: fruit prices (2 of 2) (K-A)

Systems of equations with elimination (and manipulation) (K-A)

Systems of equations with elimination: 2 (K-A)

Systems of equations with elimination: King's cupcakes (K-A)

Systems of equations with elimination: potato chips (K-A)

Why can we subtract one equation from the other in a system of equations? (K-A)

Worked example: equivalent systems of equations (K-A)

Worked example: non-equivalent systems of equations (K-A)

Systems of equations with substitution: 2 (K-A)

Systems of equations with substitution: potato chips (K-A)

Age word problem: Arman and Diya (K-A)

Age word problem: Ben and William (K-A)

Age word problem: Imran (K-A)

System of equations word problem: infinite solutions (K-A)

System of equations word problem: no solution (K-A)

System of equations word problem: walk and ride (K-A)

Systems of equations with elimination: apples and oranges (K-A)

Systems of equations with elimination: coffee and croissants (K-A)

Systems of equations with elimination: TV and DVD (K-A)