4 3 -5|11
1 1 2|0
2 4 9|14

A. 4x - 3y + 5z = 11
x - y - 2z = 0
2x + 9y + 4z = 14

B. 4x + 3y - 5z = 11
x - y - 2z = 0
2x + 4y + 9z = 14

C. 4x + 3y - 5z = 11
-x + 2y + z = 0
2x + 4y + 9z = 14

Is the answer B?

Question

4 3 -5|11
1 1   2|0
2 4  9|14

A. 4x - 3y + 5z = 11
    x - y - 2z = 0
    2x + 9y + 4z = 14

B. 4x + 3y - 5z = 11
     x - y - 2z = 0
    2x + 4y + 9z = 14

C. 4x + 3y - 5z = 11
   -x + 2y + z = 0
   2x + 4y + 9z = 14

Is the answer B?

anonymous · Answer

Just look at all the coefficients and pick the one that matches the matrix.

anonymous · Answer

I just wanted to double check..

anonymous · Answer

The signs of the second equation in B don't match up.

anonymous · Answer

How do they not?