first combine like terms so 2n + 7n which is 9n
so 9n + 7 = 13 + 3n + 8n
then combine on other side so 9n + 7 = 13 + 11n
then subtract 7 to 13 so 6
sp 9n + 6 = 11n
then subtract 9 to the other side so 2n
6 = 2n then divide all by 2
n= 3
2n+7+7n=13+11n
7+9n=13+11n
9n-11n=13-7
-2=6
-2/-2 6/-2
-3
By the way that( / )means division lol
