SOLUTION: Make A the subject of the formula Sn=Ar(r^n-1)/r-1

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Question 1115681: Make A the subject of the formula Sn=Ar(r^n-1)/r-1
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Make A the subject of the formula Sn=%28Ar%28r%5En-1%29%29%2F%28r-1%29
distribute r
Sn=%28A%28r%5E%28n%2B1%29-r%29%29%2F%28r-1%29
multiply both sides by (r-1)
A%28r%5E%28n%2B1%29-r%29 = Sn%28r-1%29
divide both sides by r%5E%28n%2B1%29-r
A = Sn%28r-1%29%2F%28r%5E%28n%2B1%29-r%29%29

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