Solve Linear Systems Using Matrices

Solve the System of Equations using Augmented Matrices.

-3x +3y = 27

x + 2y = 3

• (5,-4)

• (5,4)

• (-5,4)

• (-5,-4)

Solve by matrices.

7x+y=-9

-3x-y=5

• No solution

• (1,8)

• (-2,-3)

• (-1,-2)

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

Mathematical Equivalence

ON

Solve the system.

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

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

• True

• False

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

• (5, 8)

• (5, -8)

• (-5, -18)

• (-5, 8)

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

6x - y = 2

-3x - 6y = 12

Find the solution of the system given:

3x - y = 7

2x + y = 3

• (-1,2)

• (5,4)

• (4,5)

• (2,-1)