The answer is 6x+7x=26
I got this by dividing 26/2=13 then I subtracted 13-1=12 then divide 12/2=6
Then I had the first part, 6x+__=26 where x = 2
I still have 14 left, so I divided that by 2 (7) and I had the full equation.
6x+7x=26
Hope this helped! Please comment or DM me if you have anymore questions or don't understand :)