If you were to use the elimination method to solve the following system, choose the new system of equations that would result after the variable y is eliminated in the first and third equations, then the first and second equations.
4x + y + 3z = 12
5x – 2y – 2z = –11
–x – y – 6z = –9

Question

If you were to use the elimination method to solve the following system, choose the new system of equations that would result after the variable y is eliminated in the first and third equations, then the first and second equations. 
4x + y + 3z = 12 
5x – 2y – 2z = –11 
–x – y – 6z = –9

anonymous · Answer

add first and third to get 
$$3x-3z=3$$

anonymous · Answer

good.  deserved it.  he or she