System of Equations Matrix

Calculate the determinant

• 0

• -15

• -70

• 10

Find the inverse.

• A

• B

• C

• D

Solve:
y = 7x + 9
2y + 2x = -18

• (5, 0)

• (9, 18)

• (-2, -5)

• (1, 16)

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

• -2

• 3

• -3

• 2

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

Determine which ordered triple is a solution of the systems of equations?
2x+y=0
x+3y-z=-11
7x+5y+4z=21

• (0,0,11)

• (1,-2,6)

• (-1,2,-16

• (0,1,-14)

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.

• (2, -4, -1)

• (4, -1, -2)

• (-2, 4, 1)

• (-2, 4, -1)