Question

 a) (35-12n) chia hết cho n b) (n+13) chia hết cho (n-5) với n>5

Answer 1

a) (35-12n) chia hết cho n

b) (n+13) chia hết cho (n-5) với n>5

Answer 2

a: \(n\in\left\{1;-1;5;-5;7;-7;35;-35\right\}\)

Answer 3

a: 

Answer 4

a) \(\left(35-12n\right)⋮n\Rightarrow n\inƯ\left(35\right)=\left\{-35;-7;-5;-1;1;5;7;35\right\}\)

b) \(\left(n-5\right)+18⋮\left(n-5\right)\)

\(\Rightarrow\left(n-5\right)\inƯ\left(18\right)=\left\{-18;-9;-6;-3;-2;-1;1;2;3;6;9;18\right\}\)

\(\Rightarrow n\in\left\{-13;-4;-1;2;3;4;6;7;8;11;16;23\right\}\)