SOLVING LINEAR systems by graphing

Solving linear systems by Substitution

SOLVING LINEAR SYSTEMS BY COMBINATION

(online practice)

Another example of linear combination

Solving Linear Systems with 3 Variables

Another - 3 variables

Adding/Multipying Matrices

MULTIPLYING MATRICES (start at 5 min.)

Solving Matrix Equations - followed by solving systems of equations using matrices Using Matrices to Solve Systems of Equations on the Graphing Calculator

Solving Matrix Equations - followed by solving systems of equations using matrices

Using Matrices to Solve Systems of Equations on the Graphing Calculator