Please, PLEASE Help me!

Solve the following system of equations.

2x - y + z = -3
2x + 2y + 3z = 2
3x - 3y - z = -4

A. (1, 3, 2)

B. (-1, 3, 2)

C. (1, -3, 2)

D. (1, 3, -2)

Question

Please, PLEASE Help me!

Solve the following system of equations. 

2x - y + z = -3 
2x + 2y + 3z = 2 
3x - 3y - z = -4

A. (1, 3, 2)

B. (-1, 3, 2)

C. (1, -3, 2)

D. (1, 3, -2)

anonymous · Answer

I really need some help with this :l

anonymous · Answer

Answer is D!

anonymous · Answer

are you sure??

anonymous · Answer

Like on a scale of 1-10 how positive are you?

anonymous · Answer

Well, it's just you go testing Darwin values ​​to see if the equalities will be correct, it looks like I did: 

  D = (1, 3, -2) 

2x - z + y = -3 
2 (1) - 3 - 2 = - 3 
  -3 = -3 -> Correct 

2x + 2y = 3z + 2 
2 (1) + 2 (3) + 3 (-2) = 2 
2 = 2 Correct 

3x - 3y - z = -4 
3 (1) - 3 (3) +2 = -4 
3 +2 = -4 -9 
- 4 = - 4 correct

anonymous · Answer

ops! sorry, it's the google translator! lol