This document discusses how matrices can be used to solve systems of equations, providing an example of a system of two equations with two unknowns, x and y. It shows setting up the equations in matrix form, finding the determinant of the coefficient matrix A, and using the inverse of A to solve for the unknowns x and y.

1. AplimatBy: Salvador Emmanuel B. MarzanGio BermejoMark Neil Mallare

2. Using Matrices in a system of equationsMatrices can be used to solve equations that can at times be easier that the normal way of solving equations.Ex. 3x + 2y =7-6x + 6y =6y= -3x/2 + 7/2y= x + 1

3. Using Matrices in a system of equations= 3x + 2y = 7-6 + 6y = 6

4. Using Matrices in a system of equations

5. Using Matrices in a system of equations|A| = = = 18 + 12 = 30

6. Using Matrices in a system of equations = 1/30 *

7. Using Matrices in a system of equations = 1/30 * = 1/30 *

8. Using Matrices in a system of equations= 1/30 * =