The document provides 14 systems of 3 equations with 3 variables to solve. Each system consists of 3 linear equations with the variables x, y, and z. The goal is to determine the values of x, y, and z that satisfy all 3 equations simultaneously in each system.

1. SISTEMA DE 3 ECUACIONES CON TRES VARIABLES
1. Resolver:
8. Resolver:
2. Resolver:
x +y + z = 2
2x+y + 3z = 1
x + 2y +z = 4
9. Resolver:
3. Resolver:
x + y −z = −2
2x− y + 3z = −5
3x+ 2z = −7
10. Resolver:
4. Resolver:
x +y + z = 8
7x+y + 6z = 7
x + 7y +z = 1
11. Resolver:
5. Resolver:
3x−2y +z = −1
2x+y − z = 2
x− 3y + z = 0
12. Resolver:
6. Resolver:
x+ y +z = 6
x−y + 2z = 5
x+ y −z = 0
13. Resolver:
3x+ y +z = 2
2x+ 2y + z = 5
x−y +z = 0
7. Resolver:
2x−y + 3z = −1
4x− 2y + 6z = −5
−2x+ y −3z = −7
14. Resolver:
2x+y − z = 11
x−3y = −20
4x+ 2y + 5z = 8