# Finite Math Examples

,

Represent the system of equations in matrix format.

These are both valid notations for the determinant of a matrix.

The determinant of a matrix can be found using the formula .

Simplify the determinant.

Simplify each term.

Multiply by to get .

Multiply by to get .

Subtract from to get .

These are both valid notations for the determinant of a matrix.

The determinant of a matrix can be found using the formula .

Simplify the determinant.

Simplify each term.

Multiply by to get .

Multiply by to get .

Add and to get .

These are both valid notations for the determinant of a matrix.

The determinant of a matrix can be found using the formula .

Simplify the determinant.

Simplify each term.

Multiply by to get .

Multiply by to get .

Subtract from to get .

Remove the parentheses from the numerator.

Move the negative in front of the fraction.

Remove the parentheses from the numerator.

Move the negative in front of the fraction.

The solution to the system of equations using Cramer's Rule.