Question

Determinati numerele naturale x stiind ca: x+1se divide cu 14 si 12 mai mic sau egal x mai mic sau egal 100

Answer 1

12<=X<=100
X+1|14
M={14, 28, 42, 46, 70, 84, 98}
X+1=14 X=13
X+1=28 X=27
X+1=42 X=43
X+1=56 X=55
X+1=70 X=69
X+1=84 X=83
X+1=98 X=97
X={13,27,43,55,69,83,97}