Hi there!
So you need to put all the same terms together so that your equation can be simplified :
7n + 6n -5 = 4n + 4
7n + 6n = 13n
13n - 5 = 4n + 4
Subtract 4n from each side of the equation
9n -5 = 4
Add 5 on each side of the equation
9n = 9
Divide each side of the equation by 9
n = 1
There you go! I really hope this helped, if there's anything just let me know! :)
