SOLUTION: Solve for d.
S = n/2[2a + (n - 1)d]
2S = n[4a + (2n - 2)2d]
Not sure how to proceed. Non - homework.
Algebra.Com
Question 1124305: Solve for d.
S = n/2[2a + (n - 1)d]
2S = n[4a + (2n - 2)2d]
Not sure how to proceed. Non - homework.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

John

My calculator said it, I believe it, that settles it

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