Question

Ex 5
Dau coroana!!!!!!!!!!!!!

Answer 1

Explicație pas cu pas:

n+3|3n+16

n|n+3 => n|3(n+3) => n|3n+9

Le scadem:

n+3|3n+16-3n-9 => n+3|7 => n+3€D7 in Z =>

n+3€{-7,-1,1,7} =>

n€{-10,-4,-2,4} dar cum n€N avem solutie n=4