Studs is the answer to this question.
Vertical structural members are called Studs. This is the term which is used in construction. There are exterior and interior walls which are framed, these walls are known as bearing walls, and some are also non- bearing. Whenever there is foundation in a place, after the first floor deck these bearing walls are formed.
565+65=630 so he needs that much to get the bike AND pay his sister back. 630 divided by $30 is 21. So, in 21 weeks, Steven Can pay back his sister and get the bike
Basically, solve for n, then find aanother tha is solve for m
8n=-3m+1
divide both sides by 8
n=-3/8m+1/8
and find m
8n=-3m+1
minus 1 both sides
8n-1=-3m
divide both sides by -3
-8/3n+1/3=m
m=-8/3n+1/3