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Find the 87th term of this sequence: 157, 150, 143, ...
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Find the 87th term of this sequence: 157, 150, 143, ...

User John Halbert
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1 Answer

4 votes

Answer:


\bold{a_(87)=-445}

Explanation:


a_1=157\\a_2=150\\\\d=150-157=-7\\\\a_n=a_1+d(n-1)\\\\a_(87)=157+(-7)(87-1)=157-7\cdot86=-445

User EladG
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