3-4 Solve Systems of Linear Equations in Three Variables: Chkpt

Solve the linear system.

4x - 3y + 5z = -19

3x - y - 8z = -21

-2x + y + 3z = 13

• (1, -4, 3)

• (4, -1, -3)

• (-2, -5, -1)

• (-3, 4, 1)

Solve the linear system.

x - 2y - 2z = 13

-x + y + z = -9

x - 4y - 4z = 21

• no solution

• (5, -4, 1)

• infinitely many solutions

• (-4, -1, -5)

Solve the linear system.

2x - 2y + z = 7

4x - 4y + 2z = 17

3x + 2y - 6z = -2

• infinite many solutions

• no solution

• (2, -6, 8)

• (-8, -2, -6)