Răspuns :
Explicație pas cu pas:
x+3|5x
x+3|x+3=>x+3|5x+15
=> x+3|5x+15-5x => x+3|15 => x+3€D15 in Z =>
x+3€{-15,-5,-3,-1,1,3,5,15} =>
x€{-18,-8,-6,-4,-2,0,2,12}
Răspuns:
x+3=D5={1;5}; X+3=1; X=1-3 ; X=-2 ; X+3=5 ; X=2 ; X+3 DIVIDE PE 5
Explicație pas cu pas:
