SOLUTION: Pls help me solve this question for what value of n is n+1c3=7(nc2)

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Question 803520: Pls help me solve this question for what value of n is n+1c3=7(nc2)

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
n+1c3=7(nc2)
n +1c3 = 7nc2
subtract n from both sides of =
1c3 = 7nc2 - n
1c3 = (7c2 -1)n
n = 1c3 / (7c2 -1)