SOLUTION: s=n/2(A+l) solve for A

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Question 852358: s=n/2(A+l)
solve for A
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
2/n*s=2/n*n/2(A+l)
A+1=2s/n
A=2s/n-1