SOLUTION: Please help me how do I solve this: A=a+d(n-1) solve for n

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Question 327406: Please help me how do I solve this: A=a+d(n-1) solve for n
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
subtracting "a" ___ A-a = d(n-1)

dividing by "d" ___ (A-a) / d = n - 1

adding 1 ___ [(A-a)/d] + 1 = n