SOLUTION: s=(n)/(2)[2a+(n-1)d] make d subject of formula

SOLUTION: s=(n)/(2)[2a+(n-1)d] make d subject of formula

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Question 214359: s=(n)/(2)[2a+(n-1)d] make d subject of formula
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Multiply both sides by
Subtract 2a from both sides.
Simplify the left side.
Divide both sides by
Simplify the left side.

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