Pre-Calc                                              Notes: Solving Systems of Equations

Find the simultaneous solutions to the following systems:

1)       2x + 3y – z = -1

3x – 2y + 2z = 15

x + 4y – 3z = -8

 

 

 

 

 

 

 

 

 

 

 

 

 

2)       x – y + z = 6

2x – z = 6

2x + 2y –z = 12

 

3)       2x + y – 2z = 1

6x + 2y – 4z = 3

4x – y + 3z = 5

 

 

 

 

 

 

 

 

4)       x – 2y + z = -1

2x + 3y – 2z = -3

x + 3y – 2z = -2

 

 

 

 

 

 

 

 

 

 

 

5)       x + z = 4

2x + 2y + 4z = 10

x + 6y + 8z = 4