Question

s crie multimea numerelorr naturale care puse in locul lui x fac adevarate scrierile: x+63<sau= 68    93-x>sau egal 80,  84-x>sauegal 80

Answer 1

x+63<=68 => x<=5 => x apartine 0,1,2,3,4,5

93-x>=80 => x<= 13 => x apartine 0,1,2,3,4,5,6,7,8,9,10,11,12,13

84-x>=80 => x<=4 => x apartine 0,1,2,3,4

Answer 2

1+63;2+63 ;3+63;4+63;5+63