# Solve it: given: l=a+(n-1) d . first make subject n and then find n if l=31 , a=15 and d=2 (with solution)

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by chicks

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by chicks

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The Brainliest Answer!

L=a+(n-1)d
31=15+(n-1)2
31-15=2n-2
16+2=2n
18=2n
18/2=n
9=n