Answer:
P = A - 0.2P
Explanation:
A = P + Prt
Where,
A = Total amount in an account earning simple interest
P = principal
r = rate
t = time
A = P + Prt
In terms of Payment
P = A - Prt
Holly:
r = 4% = 0.04
t = 5 years
P = A - Prt
= A - (P * 0.04 * 5)
= A - 0.2P
P = A - 0.2P