First you need to simplify the fraction and then it turns into b-1/5=1 then you add the fraction to both sides and then it's b=1+1/5 then before you add 1 and 1/5 you need a common denominator so you multiply 1 by 5 then it's 5/5+1/5 then it turns into b=6/5 (this is a really bad explanation but oh well)
