Answer;
[tex]x=40[/tex]
Explanation;
To get the correct choice, we have to simplify the given equation as follows;
[tex]\begin{gathered} 4x-(2x+6)=3x-46 \\ 4x-2x-6=3x-46 \\ 2x-6=3x-46 \\ 3x-2x=46-6 \\ x\text{ = 40} \end{gathered}[/tex]
So, the correct option is A and we fill the value 40 in the box
