Question

The following system has a solution of x = -5, y = 9, z = 11.
4x + y + z = 12
-4x-y-z=-10
5y-z = 9
Please select the best answer from the choices provided
OT
OF

Answer 1

42

Step-by-step explanation:

I added 11+12+10+9=42

Answer 2

I think the answer is false Im not completely sure but it seems right