Question

Find the value of least positive integer n such that 2n-1n
+ 7is an integer.

Answer 1

Answer:

Let k=(2n-1) /(n+7) =2n+14 -15 / (n+7) k = 2 – 15/(n+7) k is an integer if n=8 then k=2–1=1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

It's 0

as 2 [0]-1 [0]+7

==0-0+7=7

7 is a integer

hope it helps u:)