# Precalculus Examples

The matrix equation can be written as a set of equations.

Solve for in the first equation.

Replace all occurrences of with the solution found by solving the last equation for . In this case, the value substituted is .

Solve for in the second equation.

Replace all occurrences of with the solution found by solving the last equation for . In this case, the value substituted is .

Solve for in the third equation.

List the solutions to the system of equations.