Answer:
I would find it by multiplying -3x-2 and getting six. Then I would multiply -1x2 and get -2 then I would add six and -2 and get 4.
Step-by-step explanation:
Need a picture or some other information to find the answer.
Answer:
![\displaystyle [-2, 7]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5B-2%2C%207%5D)
Step-by-step explanation:
You want to eradicate one pair of variables so they are set to zero. It does not matter which pair is selected:

{½[4x + 2y = 6]
{−2x + 2y = 18
>> 
Plug this back into the system to get the x-value of 
I am joyous to assist you at any time.
I’m pretty sure it would be the third option, 162