Solve the formula P=A/1+rt for t.

Question

I wanna see the steps 

Answer 1

P=A/(1+rt)

 

multiply both sides with (1+rt)

P(1+rt) = [A/(1+rt)] * (1+rt)

P(1+rt) = A

divide both sides by P

P(1+rt)/P = A/P

1+rt = A/P

 

subtract 1 from both sides

1+rt -1 = (A/P) -1
rt = (A/P) -1

 

divide both sides by r

rt/r = [(A/P) -1]/r
t = [(A/P) -1]/r