A=P+Prt
solve for t
I don't know if it is either
t= (a-p)/pr
or
t=-(1/r)+(A/Pr)
or is it a completely different answer?
Thank you in advance!!!
A = P + Prt
A-P = Pr*t
t = (A-P)/(Pr)
It is also
t = A/(Pr) - 1/r
I'd go with the first, but you might have reasons to use the second.