Technically this is a shortcut to solving a system of equations, but you still have to find the inverse of a matrix. What's short about that?

Objective 1

You will be able to find the inverse of a square matrix. Duration_11_15

Objective 2

You will be able to solve a matrix equation using inverses. Duration_7_22

Objective 3a

You will be able to solve a matrix equation using inverses. Duration_9_20

Objective 3b

You will be able to solve a matrix equation using inverses. Duration_12_29

Optional

Inverse of a 3x3 Matrix

If you're feeling brave, here's a Khan Academy video on finding the inverse of a 3x3 matrix. Duration_16_44

Algebra II 3 (B) solve systems of three linear equations in three variables by using Gaussian elimination, technology with matrices, and substitution