Question 500249
Amount = Principle + Interest  -> formula 1

Interest = (P*r*t)/100 -> formula 2

Let P be the Principle that Clarita borrowed from the bank
I be the  interest
r = rate of interest = 6%
t = 10 years

Amount = $8000

Using the formula 1,
8000 = P + I

Substituting I from the formula 2,
8000 = P + (Prt)/100]
8000 = P*(1+ (rt)/100)
8000 = P*(1+ (6* 10)/100)
8000 = P*(1+3/5) 
8000= P*8/5
=> P = (8000*5)/8
=> P = 5000
Hence Clarita borrowed $5000 from the bank