Răspuns :
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
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