Answer:
This question is even confusing for me, but I hope this information helps you find your answer by yourself, if not, review your work and give it your best shot. Or, if someone else gives a better answer, then that would be better.
Explanation:
For x + y + z = 2, x would be equal to − y − z + 2.
For 2x + 3z = 4, x would be equal to − 3/2 x + 2.
For x - 3y - 2z = 12 , x would be equal to 3y + 2z + 12
Hope this helps!