Solve Linear Systems Using Matrices

Solve the System of Equations using Augmented Matrices.

-3x +3y = 27

x + 2y = 3

Solve by matrices.

7x+y=-9

-3x-y=5

A system of equations is shown below.
3x + 6 = 4y
3x − 2y = 0
What is the x-value in the solution to the system?

Solve the system.

2x + y = 3 and 4x + 4y = 8

(a)  

3x + y = –21
x + y = –5
 
Answer:
x = –8
y = 3 

Which ordered pair is the solution of the following system of equations? -x + y = -13 -8x - 4y = -8

What is the value of y in the solution to this system of equations?

6x - y = 2

-3x - 6y = 12

(a)  

Solve the system of linear equations: (Write the answer as a point.)

$$8x+14y=4$$  

$$-6x\ -7y\ =\ -10$$  



(a)  

On your paper, show the setup for solving the system using Cramer's Rule. Answers are written in the following form (x,y)
$$4x+6y=3$$  
$$8x-3y=1$$  

Find the solution of the system given:

3x - y = 7

2x + y = 3