SOLUTION: Please help me solve this prolem. I just don't get it if there are not numbers. Solve for P: A=P+Pr

Question 170387: Please help me solve this prolem. I just don't get it if there are not numbers.
Solve for P: A=P+Pr
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
Letters should be easier because you don't have to use much math to solve the equations.
A=P+Pr
a=p(1+r)
p=a/(1+r)
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