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Nh term to 25 20 15 10 5
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Nh term to 25 20 15 10 5

User ZenLikeThat
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a_n=a_1+(n-1)d\\\\ a_1=25\\ d=-5\\\\ a_n=25+(n-1)\cdot(-5)\\ a_n=25-5n+5\\ \boxed{a_n=-5n+30}

User Meek
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