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## Answers

using the formula in finding An you'll have

An = A1 + (n-1) d

5 = 83 + (n-1)(-3)

5 = 83 -3n +3

transpose -3n to the left and 5 to the right

3n = 83 + 3 + 5

3n = 91

n = 91/3

recheck the given problem

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using the formula in finding An you'll have

An = A1 + (n-1) d

5 = 83 + (n-1)(-3)

5 = 83 -3n +3

transpose -3n to the left and 5 to the right

3n = 83 + 3 + 5

3n = 91

n = 91/3

recheck the given problem