The total amount of a loan to which interest has been added is $20000$. The term of the loan was for $4.5$ years. If the annual rate of interest was $6\%$ and interest was compounded annually, what was the amount of the loan? The answer is $15 386.99$
The interest after $4.5$ years is given as
Then to calculate the amount of loan,
The answer for $A(0)$ does not come out.