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| Question 365600:  P= A/1+rt   solve for r
 Answer by Jk22(389)
      (Show Source): 
You can put this solution on YOUR website! P = A/1+rt 
 if rt != -1, P + Prt = A, by multiplying
 
 Prt = A - P, by substracting P
 
 if Pt != 0, then r = (A-P)/Pt
 
 if Pt = 0, then, if P = 0, t != 0, then solution exist if A = 0 forall r
 
 if P != 0, t = 0, solution if A = P forall r
 
 if P = 0, t = 0, solution if A = 0 forall r
 if rt = -1, no solution exit
 
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