SOLUTION: Solve the system. 5x + 5y – 4z = 13 5x + 3y + z = –3 3x – 2y – z = –10

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Solve the system. 5x + 5y – 4z = 13 5x + 3y + z = –3 3x – 2y – z = –10       Log On


   

Question 1109713: Solve the system.
5x + 5y – 4z = 13
5x + 3y + z = –3
3x – 2y – z = –10
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the system.
5x + 5y – 4z = 13
5x + 3y + z = –3
3x – 2y – z = –10
-------------------
Add eqns 2 & 3
---
Multiply the 2nd eqn by 4 and add to the 1st eqn.
z is eliminated, leaving 2 eqns in x & y.
Can you do the rest?