If your asking how to put this in a numerical form then it’s....
8+2x=14
If you need to know what the value of “x” is then you subtract 8 from each side which will give you .... 2x=6 , then you divide 2 by each side and then that will give you x=3
8+2x=14
-8 -8
2x=6
x=3
I hope this helped , if it didn’t I apologize
Good luck