Solving a System with a Matrix

Calculate the determinant

• 0

• -15

• -70

• 10

Find the inverse.

• A

• B

• C

• D

Solve the system of equations to find the value of z.

• 4

• -4

• 2

• -2

Solve the system.

• (5, -6, 3)

• (2, 3, -1)

• (-4, 2, 5)

• No Solution

Solve:
-4x - 5y - z = 18
-2x - 5y - 2z = 12
-2x + 5y + 2z = 4

• (4, 0, -2)

• (-4, 0, -2)

• Many Solutions

• I did not get any of the answers above so I am assuming none of the above.

Solve the system.  Write the matrix equation on your own paper.
5x + 8y = -12
3x + 5y = -7

• (1, -10)

• No solution

• (-4, 1)

• (1, 10)

Solve the system and find the value of x - z.

• -4

• 8

• 14

• -14

Solve the system of equations and find the value of z + y.



• 4

• -4

• 3

• 13

Solve the system of equations and find the value of 3y - x.



• -17

• -25

• 3

• -30

Solve the system of equations.

• (2, -4, -1)

• (4, -1, -2)

• (-2, 4, 1)

• (-2, 4, -1)