Which of the following operations would eliminate the x-terms of the two equations were added together afterward

Given:
There are given the two systems of equation.
[tex]\begin{gathered} 3x+\frac{1}{2}y=3...(1) \\ 6x-y=2...(2) \end{gathered}[/tex]Explanation:
According to the question:
We need to find the value that eliminate the x-term.
So,