Step-by-step explanation:
look in the comments I'll put the answers as I go along x
Answer:
#11 21
You have the right steps for question 10, let me work #11 n/3 -5 = 2
So following your steps: move the -5 so n/3 = 2+5 so n/3 = 7, now
multiply both sides by 3 so n = 21
